Category: Class 11

Balbharti Maharashtra State Board 11th Biology Textbook Solutions Chapter 7 Cell Division Textbook Exercise Questions and Answers.

Maharashtra State Board 11th Biology Solutions Chapter 7 Cell Division

1. Choose the correct option

Question (A)
The connecting link between Meiosis – I and Meiosis – II is …………
(a) interphase – I
(b) interphase – II
(c) interkinesis – III
(d) anaphase – IV
Answer:
(c) interkinesis – III

Question (B)
Synapsis is pairing of ………………. .
(a) any two chromosomes
(b) non – homologous chromosomes
(c) sister chromatids
(d) homologous chromosomes
Answer:
(d) homologous chromosomes

Question (C)
Spindle apparatus is formed during which stage of mitosis?
(a) Prophase
(b) Metaphase
(c) Anaphase
(d) Telophase
Answer:
(b) S-phase

Question (D)
Chromosome number of a cell is almost doubled up during _______ .
(a) G₁ – phase
(b) S – phase
(c) G₂-phase
(d) G₀-phase
[Note: Due to DNA replication the DNA content of cell doubles during S-phase. But the number of chromosomes remain the same.]
Answer:
(b) S – phase

Question (E)
How many meiotic divisions are necessary for formation of 80 sperms?
(a) 80
(b) 40
(c) 20
(d) 10
Answer:
(c) 20

Question (F)
How many chromatids are present in anaphase – I of meiosis – I of a diploid cell having 20 chromosomes?
(a) 4
(b) 6
(c) 20
(d) 40
Answer:
(d) 40

Question (G)
In which of the following phase of mitosis chromosomes are arranged at equatorial plane?
(a) Prophase
(b) Metaphase
(c) Anaphase
(d) Telophase
Answer:
(b) Metaphase

Question (H)
Find incorrect statement.
(a) Condensation of chromatin material occurs in prophase.
(b) Daughter chromatids are formed in anaphase.
(c) Daughter nuclei are formed at metaphase.
(d) Nuclear membrane reappears in telophase.
Answer:
(c) Daughter nuclei are formed at metaphase.

Question (I)
Histone proteins are synthesized during
(a) G₁ phase
(b) S – phase
(c) G₂ – phase
(d) Interphase
Answer:
(b) S – phase

2. Answer the following questions

Question (A)
While observing a slide, student observed many cells with nuclei. But some of the nuclei were bigger as compared to others but their nuclear membrane was not so clear. Teacher inferred it as one of the phase in the cell division. Which phase may be inferred by teacher?
Answer:
Prophase.

Question (B)
Students prepared a slide of onion root tip. There were many cells seen under microscope. There was a cell seen under microscope. There was a cell with two groups of chromosomes at opposite ends of the cell. This cell is in which phase of mitosis?
Answer:
Anaphase.

Question (C)
Students were shown some slides of cancerous cells. Teacher made a comment as if there would have been a control at one of its cell cycle phase, there wouldn’t have been a condition like this. Which phase the teacher was referring to?
Answer:
The phase teacher was referring would be G_i phase.

Question (D)
Some Mendelian crossing experimental results were shown to the students. Teacher informed that there are two genes located on the same chromosome. He enquired if they will be ever separated from each other?
Answer:

1. Genes are located on chromosomes at specific distance and position.
2. The greater this distance, the greater the chance that a crossover can occur between the genes and the greater the chances of recombination.
3. The chances of recombination are less between the genes that are placed closed to each other on the chromosome.
4. Therefore, due to recombination the two genes located on the same chromosome have possibility of separating from each other.

Question (E)
Students were observing a film on Paramoecium. It underwent a process of reproduction. Teacher said it is due to cell division. But students objected and said that there was no disappearance of nuclear membrane and no spindle formation, how can it be cell division? Can you clarify?
Answer:

1. Paramoecium is a unicellular organism. The division in Paramoecium occurs by amitosis.
2. It is the simplest mode of cell division.
3. In amitosis, nucleus elongates and a constriction appears. This constriction deepens and divides the nucleus in two daughter nuclei followed by the division of cytoplasm.

Question (F)
Is the meiosis responsible for evolution? Justify your answer.
Answer:

1. Meiosis ensures that organisms produced by sexual reproduction contain correct number of chromosomes.
2. Meiosis exhibits genetic variation by the process of recombination.
3. Variations increase further after union of gametes during fertilization creating offspring with unique characteristics. Thus, it creates diversity of life and is responsible for evolution.

Question (G)
Why mitosis and meiosis – II are called as homotypic division?
Answer:
1. In mitosis, the chromosome number and genetic material of daughter cells remain same as that of the parent cell.
2. In meiosis – II, two haploid cells formed during first meiotic division divide further into four haploid cells. This division is identical to mitosis. The daughter cells formed in second meiotic division are similar to their parent cells with respect to the chromosome number formed in meiosis -1. Hence mitosis and meiosis – II are called homotypic division.

Question (H)
Write the significance of mitosis.
Answer:

1. As mitosis is equational division, the chromosome number is maintained constant.
2. It ensures equal distribution of the nuclear and the cytoplasmic content between the daughter cells, both quantitatively and qualitatively. Therefore, the process of mitosis also maintains the nucleo-cytoplasmic ratio.
3. The DNA is also equally distributed.
4. It helps in growth and development of organisms.
5. Old and worn-out cells are replaced through mitosis.
6. It helps in the asexual reproduction of organisms and vegetative propagation in plants.

Question (I)
Enlist the different stages of prophase – I.
Answer:
1. Prophase -I:
It is the most complicated and longest phase of meiotic division.
It is further divided into five sub-phases viz. leptotene, zygotene, pachytene, diplotene and diakinesis.

a. Leptotene:
The volume of the nucleus increases.
The chromosomes become long distinct and coiled.
They orient themselves in a specific fonn known as bouquet stage. This is characterized with the ends of chromosomes converged towards the side of nucleus where the centrosome lies. j Lep
The centriole duplicates into two and migrates to opposite poles. [Note: Centrioles divide during Gj phase of interphase.]

b. Zygotene:
Pairing of non-sister chromatids of homologous chromosomes takes place by formation of synaptonemal complex. This pairing is called synapsis.
Each pair consists of a maternal chromosome and a paternal chromosome. Chromosomal pairs are called bivalents or tetrads.

c. Pachytene:
Each individual chromosome begins to split longitudinally into two similar chromatids. Therefore, each bivalent now appears as a tetrad consisting of four chromatids.
The homologous chromosomes begin to separate but they do not separate completely and remain attached to one or more points. These points are called chiasmata (Appear like a cross-X).
Chromatids break at these points and broken segments are exchanged between non-sister chromatids of homologous chromosomes resulting in recombination.

d. Diplotene:
The chiasma becomes clearly visible in diplotene due to beginning of repulsion between synapsed homologous chromosomes. This is known as desynapsis. Synaptonemal complex also starts to disappear.

e. Diakinesis:
The chiasmata begin to move along the length of chromosomes from the centromere towards the ends of chromosomes. The displacement of chiasmata is termed as terminalization.
The terminal chiasmata exist till the metaphase.
The nucleolus and nuclear membrane completely disappear and spindle fibres begin to appear.

3. Draw labelled diagrams and write explanation

Question (A)
With the help of suitable diagram, describe the cell cycle.
Answer:
1. Series of events occurring in the life of a cell is called cell cycle. Interphase and M – phase are the two phases of cell cycle.
2. Interphase: It is the stage between two successive cell divisions. It is the longest phase of a cell cycle during which the cell is highly active and prepares itself for cell division.
The interphase is subdivided into three sub-phases as G₁ – phase, S-phase and G₂-phase.
a. G₁ – phase (First gap period/First Gap Phase):
It begins immediately after cell division.
RNA (mRNA, rRNA and tRNA) synthesis, protein synthesis and synthesis of membranes take place during this phase.
b. S – phase (Synthesis phase):
In this phase DNA is synthesized (replicated), so that amount of DNA per cell doubles.
Synthesis of histone proteins takes place in this phase.
c. G₂ – phase (Second growth phase/Second Gap Phase):
Metabolic activities essential for cell division occur during this phase.
Various proteins which are necessary for the cell division are also synthesized in this phase.
Apart from this, RNA synthesis also occurs during this phase.
In animal cells, a daughter pair of centrioles appears near the pre-existing pair.

Question (B)
Distinguish between mitosis and meiosis.
Answer:

Mitosis	Meiosis
(a) It occurs in somatic cells and stem cells.	It occurs in germ cells.
(b) In this nucleus divides only once.	In this nucleus divides twice (Meiosis I and Meiosis II)
(c) In these two daughter cells are formed.	In these four daughter cells are formed.
(d) Daughter cells formed by mitotic division are diploid (2n).	Daughter cells formed by meiotic division are haploid (n)•
(e) In mitosis, crossing over does not take place.	In meiosis, crossing over takes place.
(f) Mitosis plays an important role in growth, repair, healing and development.	Meiosis is important for formation of haploid gametes and spores.

Question (C)
Draw labelled diagrams and write explanation Draw the diagram of metaphase.
Answer:
Metaphase:
a. Chromosomes are completely condensed and appear short.
b. Centromere and sister chromatids become very prominent.
c. All the chromosomes are arranged at equatorial plane of cell. This is called metaphase plate.
d. Mitotic spindle is fully formed in this phase.
e. Centromere of each chromosome divides horizontally into two, each being associated with a chromatid. [Note: The centromeres divide at the beginning of anaphase so that the two chromatids of each chromosome become separated from each other.
Source: Cell Division, Donald B. McMillan, Richard J. Harris, in An Atlas of Comparative Vertebrate Histology, 2018.]

Question 4.
Match the following column – A with column – B

Column I (Phases)	Column II (Their events)
1. Leptotene	(a) Crossing over
2. Zygotene	(b) Desynapsis
3. Pachytene	(c) Synapsis
4. Diplotene	(d) Bouquet stage

Answer:

Column I (Phases)	Column II (Their events)
1. Leptotene	(d) Bouquet stage
2. Zygotene	(c) Synapsis
3. Pachytene	(a) Crossing over
4. Diplotene	(b) Desynapsis

Question 5.
Is the given figure correct? Why?

Answer:
1. The given figure is incorrect as the spindle fibres are not attached to centromere of the chromosomes.
2. During metaphase, chromosomes are attached to spindle fibres with the help of centromeres.

Question 6.
If an onion has 16 chromosomes in its leaf cell, how many chromosomes will be there in its root cell and pollen grain.
Answer:
1. The chromosomes in root cell will be 16 as root cell is a diploid cell.
2. The chromosomes in pollen grain will be 8 as pollen grain is a haploid cell.

7. Identify the following phases of mitosis and label the ‘A’ and ‘B’ given in diagrams.

Question (i)

Answer:
The diagram shown is of Metaphase.
A: Chromosomes arranged on metaphase plate

Question (ii)

Answer:
The diagram shown is of Anaphase.
B: Chromatids moving to opposite poles.

Practical / Project:

Question 1.
Fix the onion root tips at different durations of the day starting from 6am up to 9am at the intervals of half an hour. Prepare the slide of each fixed root tip and analyse the relation between time and phase of mitosis.
Answer:
Mitotic division is an equational division in which one parent cell give rise to two daughter cells with equal number of chromosomes in daughter cells and mother cell. It has four sub phases: prophase, metaphase, anaphase, telophase.

Mitosis is affected by temperature and time. Mitotic index is high in morning so the mitosis is observed clearly in the morning. (Mitotic index is defined as the ratio between the number of cells in a population undergoing mitosis to the total number of cells in a population. )
[Note: Students catt use above information for reference and perform this activity on their own.]

11th Biology Digest Chapter 7 Cell Division Intext Questions and Answers

Can you recall? (Textbook Page No. 76)

How do your wounds heal?
Answer:
a. A wound is an injury to living tissue.
b. Healing of wound take place by mitosis.
c. Repetitive mitotic divisions near the site of injury results in healing of wound.

Can you tell? (Textbook Page No. 79)

What is cell cycle?
Answer:

1. Sequential events occurring in the life of a cell is called cell cycle.
2. Interphase and M – phase are the two phases of cell cycle.
3. Cell undergoes growth or rest during interphase and divides during M – phase.

Discuss with teacher (Textbook Page No. 76)

Some cells do not have gap phase in their cell cycle whereas some cells spend maximum part of their life in gap phase. Search for such cells. Some cells are said to be in G₀ phase. What is this G₀ phase?
Answer:

1. G₀ is the phase of the cell cycle in eukaryotes in which many cell types stop dividing. It is also called a quiescent stage.
2. If cells are deprived of appropriate growth factors, they stop at the Gi checkpoint of the cell cycle. Their growth and division are arrested and they remain in G₀ phase.
3. Mature neurons and muscle cells remain in G₀ phase.

Question 5.
Can you tell? (Textbook Page No. 79)
Answer:
1. Series of events occurring in the life of a cell is called cell cycle. Interphase and M – phase are the two phases of cell cycle.
2. Interphase: It is the stage between two successive cell divisions. It is the longest phase of a cell cycle during which the cell is highly active and prepares itself for cell division.
The interphase is subdivided into three sub-phases as G₁ – phase, S-phase and G₂-phase.
a. G₁ – phase (First gap period/First Gap Phase):
It begins immediately after cell division.
RNA (mRNA, rRNA and tRNA) synthesis, protein synthesis and synthesis of membranes take place during this phase.
b. S – phase (Synthesis phase):
In this phase DNA is synthesized (replicated), so that amount of DNA per cell doubles.
Synthesis of histone proteins takes place in this phase.
c. G₂ – phase (Second growth phase/Second Gap Phase):

1. Metabolic activities essential for cell division occur during this phase.
2. Various proteins which are necessary for the cell division are also synthesized in this phase.
3. Apart from this, RNA synthesis also occurs during this phase.
4. In animal cells, a daughter pair of centrioles appears near the pre-existing pair.

Internet my friend (Textbook Page No. 77)

What is Karyogram or Karyotype?
Answer:
1. A karyotype is a representation of condensed chromosomes arranged in pairs.
2. Analysis of the karyotype of a particular individual indicates whether the individual has a normal set of chromosomes or whether there are abnormalities in number or appearance of individual chromosomes.

Can you tell? (Textbook Page No. 79)

Which are the steps of mitosis?
Answer:
Steps in mitosis are Karyokinesis and Cytokinesis. Karyokinesis includes four stages – Prophase, Metaphase, Anaphase and Telophase.

Internet my friend (Textbook Page No. 79)

How the life span of a cell is decided?
Answer:

1. Life span of different cells vary greatly.
2. Life span of a cell is decided by its growth rate, metabolic activities and cell size.
3. The life span of a cell can be analysed in laboratory by applying carbon-14 technique to DNA.
4. This method is commonly used in archaeology and paleontology to find the age of fossils. Same can be applied to determine the life span of a cell.

Do yourself (Textbook Page No. 80)

Write down the explanation of prophase I in your own words.
Answer:
1. Prophase -I:
It is the most complicated and longest phas0e of meiotic division.
It is further divided into five sub-phases viz. leptotene, zygotene, pachytene, diplotene and diakinesis.

a. Leptotene:

1. The volume of the nucleus increases.
2. The chromosomes become long distinct and coiled.
3. They orient themselves in a specific fonn known as bouquet stage. This is characterized with the ends of chromosomes converged towards the side of nucleus where the centrosome lies.
4. The centriole duplicates into two and migrates to opposite poles. [Note: Centrioles divide during G_j phase of interphase.]

b. Zygotene:

1. Pairing of non-sister chromatids of homologous chromosomes takes place by formation of synaptonemal complex. This pairing is called synapsis.
2. Each pair consists of a maternal chromosome and a paternal chromosome. Chromosomal pairs are called bivalents or tetrads.

c. Pachytene:

1. Each individual chromosome begins to split longitudinally into two similar chromatids. Therefore, each bivalent now appears as a tetrad consisting of four chromatids.
2. The homologous chromosomes begin to separate but they do not separate completely and remain attached to one or more points.
3. These points are called chiasmata (Appear like a cross-X).
4. Chromatids break at these points and broken segments are exchanged between non-sister chromatids of homologous chromosomes resulting in recombination.

d. Diplotene:
The chiasma becomes clearly visible in diplotene due to beginning of repulsion between synapsed homologous chromosomes. This is known as desynapsis. Synaptonemal complex also starts to disappear.

e. Diakinesis:

1. The chiasmata begin to move along the length of chromosomes from the centromere towards the ends of chromosomes. The displacement of chiasmata is termed as terminalization.
2. The terminal chiasmata exist till the metaphase.
3. The nucleolus and nuclear membrane completely disappear and spindle fibres begin to appear.

Curiosity Box: (Textbook Page No. 81)

(i) What is exact structure of synaptonemal complex?
Answer:
Synaptonemal complexes are zipper like structures assembled between homologous chromosomes during the prophase of first meiotic division.
[Source: ncbi.nlm. nih.gov/pubmed/8743892]

(ii) What is structure of chiasma?
Answer:
Chiasma is a X-shaped point of attachment between two non-sister chromatids of a homologous chromosomes.

(iii) Which type of proteins are involved in formation of spindle fibres?
Answer:
Spindle fibres are formed from microtubules with many accessory proteins.

(iv) Why and how spindle fibres elongate and some contract?
Answer:
a. Spindle fibres elongate for assembly of chromosomes at equatorial plane of the cell during metaphase and spindle fibres contract for pulling chromosomes towards opposite poles during anaphase.
b. The spindle fibres elongate (polymerize) by incorporating subunits of the protein tubulin and contract

(v) What is the role of centrioles in formation of spindle apparatus?
Answer:
Centriole plays an important role in cell division. Centrioles help organize microtubule assembly and forms spindle apparatus that separate the chromosomes during cell division.

Curiosity box (Textbook Page No. 81)

What would have happened in absence of meiosis?
Answer:

1.  Gametes are produced by the process of meiosis which are essential for sexual reproduction.
2. Diploid organisms have two set of chromosomes (one paternal and one maternal).
3. For a diploid organism to undergo sexual reproduction it needs to create gametes that contain only one set of chromosomes so the number of chromosomes remains same in the next generation.
4. In absence of meiosis, the chromosome number of parents and their offsprings will differ in every generation; hence no species will hold its characters.
5. Also, there will be no crossing over of homologous chromosomes. Thus, there will be no variations with respect to the changing environment in progeny to maintain their existence, which may lead to extinction of species.

Can you tell? (Textbook Page No. 82)

(i) What is the difference between mitosis and meiosis?
Answer:

Mitosis	Meiosis
(a) It occurs in somatic cells and stem cells.	It occurs in germ cells.
(b) In this nucleus divides only once.	In this nucleus divides twice (Meiosis I and Meiosis II)
(c) In these two daughter cells are formed.	In these four daughter cells are formed.
(d) Daughter cells formed by mitotic division are diploid (2n).	Daughter cells formed by meiotic division are haploid (n) •
(e) In mitosis, crossing over does not take place.	In meiosis, crossing over takes place.
(f) Mitosis plays an important role in growth, repair, healing and development.	Meiosis is important for formation of haploid gametes and spores.

(ii) What is difference between meiosis – I and meiosis – II?
Answer:

Meiosis I	Meiosis II
(a) Diploid cell is divided into two haploid cells.	Two haploid cells formed in meiosis I divides further into four haploid cells.
(b) This division is called heterotypic division.	This division is called homotypic (equational) division.
(c) It consists of prophase – I, metaphase – I, anaphase -1, telophase -1 and cytokinesis.	It consists of prophase – II, metaphase – II, anaphase – II, telophase – II and cytokinesis.
(d) Number of chromosomes is reduced to half, i.e. from diploid to haploid state.	In meiosis II number of chromosomes remain the same.
(e) It is complicated and long duration division.	It is simple and short duration division.
(f) Telophase I results into 2 daughter cells.	Telophase II results in 4 daughter cells.

(iii) Elaborate the process of recombination.
Answer:
a. Recombination is exchange of genetic material between paternal and maternal chromosomes during gamete formation.
b. The points where crossing over takes place is known as chiasmata.
c. Chromatids acquire new combinations of alleles by physically exchanging segments in crossing-over.
d. The exchange of genetic material between homologous chromosomes involves accurate breakage and joining of DNA molecules through a complex mechanism.
e. It is catalyzed by enzymes.

Do Yourself (Textbook Page No. 82)

Prepare a concept map on cell division in following box.
Answer:
Refer Quick Review

Internet My Friend (Textbook Page No. 82)

Different types of proteins like cyclins, maturation promoting factor (MPF), cyclosomes, enzymes like cyclin dependent kinases (CDK) play important role in control of cell cycle. Collect more information about these proteins and enzymes from internet, prepare a power-point presentation and present it in the class.
Answer:

1. The regulation of the cell cycle involves an internal control system consisting of proteins called cyclins and enzymes called cyclin-dependent kinases.
2. A Cdk is a protein kinase. When the kinase of the Cdk is activated upon binding to a cyclin, it phosphorylates target proteins in the cell, regulating their activities.
3. Those proteins play important roles in initiating or regulating significant events of the cell cycle, such as DNA replication, mitosis, and cytokinesis.
4. Maturation Promoting Factor (MPF) triggers the cell’s passage into the mitotic phase.
   [Note: Students are expected to perform the above activity by their own with the help of information provided in the answer.]

Balbharti Yuvakbharati English 11th Digest Chapter 3.1 Expansion of Ideas Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 11 English Yuvakbharati Solutions Chapter 3.1 Expansion of Ideas

11th English Digest Chapter 3.1 Expansion of Ideas Textbook Questions and Answers

Question 1.
Discuss the different ideas connoted by the word ‘season’.
Answer:

1. A season is a division of the year based on weather, ecology etc.
2. India experiences six seasons round the year, namely, summer (grisha), rainy season (varsha), early autumn (sharad), late autumn (hemanta), winter (sheet), spring (vasanta).
3. The change of season allows many people to plan their activities (not shifting of house during rainy season), food, recreation, celebrations, etc.

Question 2.
Select a season of your choice and give the following details:

• Time of the year –
• Characteristics- crops, festivals etc.
• Features/changes – climate/weather/temperature etc.
• Advantages/Disadvantages-

Answer:

Winter
Duration	October to January
Climate	Cold
Crops	Wheat, Onion, Grapes, Sunflower
Work	Sowing seeds
Festivals	Diwali, Dashera, Christmas, Makarsankranti
Advantages	Cool weather useful for the growth of crop, rebirth of natural scenery

Question 3.
Mention some proverbs associated with the word season, guess their meanings and write them along with a sentence of your own.
Answer:
(a) Make hay while the sun shines.
1. Meaning: Make the most benefit out of an opportunity
2. Sentence: Having got admission in a good college you should make hay while the sun shines.

(b) For everything there is a season
1. Meaning: For everything there is appropriate time.
2. Sentence: This is not the time to waste it talking to your friend, you must know, for everything ‘
there is a season

(c) No winter lasts for ever, no spring skips its turn.
1. Meaning: bad days do not stay for ever, as spring always replaces winter in the natural course of
nature.
2. Sentence: Cheer up, my friend, as no winter lasts for ever, no spring skips its turn.

Express your views and opinions in favor and against the topic.

Question (i)
Are sports essential in Jr. Colleges?
Answer:
Favour: (a) Sports help in increasing the physical and mental ability of students.
(b) Sports boost confidence and keep sportspersons fit for everyday living.
(c) Sports teach students team work.
Against: (a) Concentrating on sports is a waste of time. Students should focus on their career.
(b) Focus on entrance exams to persue better career opportunities.

Question (ii)
Are college council elections essential in Jr. Colleges?
Answer:
Favour: (a) The college council elections train the students to take up leadership roles and help them develop decisiveness.
Against: (a) Through elections in colleges children will follow the wrong path.
(b) They will be affected by national politics.
(c) Might get into bad company.

Question (iii)
Is cell-phone the need of the times?
Answer:
Favour: (a) Cell-phone has become the main and the fastest source of communication.
(b) Without a cell-phone one may feel crippled as it is repository of essential data and also is a source of knowledge.
Against: (a) Regular use of cell-phones affects our health conditions.
(b) Increases crimes.

Question (iv)
Should the ‘Earn and Learn’ concept be mandatory for students?
Answer:
Favour:
(a) It can make students economically independent.
(b) It can develop perseverance among students.
(c) Students will be aware of the value of money and hard work.
Against:
(a) This is an age for enjoyment.
(b) Students should concentrate on their health and family time.

(A1)

Question 1.
Expand the idea inherent in the following proverbs:
Answer:
1. A Bad Workman Blames his Tools
This proverb is an useful guide in practical life. It has been generally found that an incompetent person always grumbler. If a student does not do well in examination, he/she sometimes takes an easy resort to blame game that the question paper is tough. The person never admits that the preparation has not been up to the mark. On the other side, a sincere and good workman never tries to find excuses for his mediocre or bad performance. He probably thinks grumbling is a confession of his personal weakness.

Difficulties are parts and parcels of our lives and we have to learn to overcome by putting our best foot forward rather than finding fault with others or may be unfavourable situations. It is better to find out the reason for the performance which is not up to the mark. One has to find out the remedy for the shortcomings and need to have the faith on one’s ownself to raise the bar of his execution.

If the tools are bad, they can be mended, not by grumbling but by removing the defects. A good workman does exactly that and does not waste time complaining. “Patience and perseverance can fetch definite rewards. Everything is possible to achieve for a sincere worker whereas all things are impossible for a lazy person who is always on the look out for a scapegoat to bear the blame of his own failure.

2. One Should Eat to Live, Not Live to Eat – (Franklin)

We all have heard the proverb “health is wealth”. A sound mind can only exist in a sound body. If we are healthy, we can handle any situation in life. Eating plays a major role in maintaining a person’s health. The eating habits depend on own discretion and if we are conscious about the decision where to stop, “this far and no farther”, we can avoid many critical conditions of life with a healthy body. That is the biggest wealth any person can have.

But one needs a strong willpower not to live just to eat. The temptations are spread all around us. Some people have the habit of eating to their heart’s content and consoling themselves saying that it is just one day only. But they are greedy enough to forget their promise easily at the sight of mouth-watering dishes and continue their theory of “living to eat”.

Apparently, to some people, the eating habits do not need to be given so much importance, because they feel that the modern technologies used in the gyms will compensate for the loss of over-eating. Work hard in the gym and you can eat anything, is their motto of life. So, after coming out of the gym, they consume a big mug of cold coffee with cream from a reputed coffee shop and do not feel guilty about it. Not only home-cooked delicious foods, but all sorts of junk foods are included in their list of foods. Food is essential for one’s survival but excess of anything is bad. It is not about restrictions only, it is about how one can balance and enjoy the food.

3. If Winter Comes, Can Spring be Far Behind? – (Shelley)

Think positive and live happy, celebrate life ideally this should be the motto of a person’s life. But how many of us honestly follow this motto? Life, indeed, is beautiful but it does not move in a straight line. There has to be ups and downs and both these ups as well as downs have something to teach us, as P.B. Shelley said, “If winter comes, can spring be far behind?”. These are the natural courses of life. One has to follow the other as one season follows the other.

Life has problems and every problem is bound to have some solutions if we can try to see the brighter side. “No one makes a lock without a key. That is why God won’t give you problems without solutions.” In God’s own world also, if severe winter creates difficulties, He has kept the spring ready to bring smile on the faces of those who faced the difficult situations bravely. Winter, being the symbol of destruction here, spring will bring with it abundance everywhere.

Our duty is to maintain our patience and wait with hope for welcoming the good days because “At the end of every tunnel, there is light”. Night follows Day, that is also God’s design. If we crumble with the pressure of frustration and make ourselves fatigued, how will we enjoy the brightness of the day or the charming weather of the spring?

4. Beauty is Truth, Truth is Beauty – (Keats)

“Ode on a Grecian Urn”, the immortal poem of the poet John Keats, brings out a fact of life, that has its own beauty where joys and sorrows live together. He shows in the poem, the pictures on the urn has paintings of a combination of happiness and sadness to depict the truth of human life. A work of art has the power to express this truth of life so explicity.

“Beauty lies in the eyes of the beholder”. The person who is seeing the beauty can interpret it his or her own way, but the truth will remain the same. Truth is the permanent and ultimate beauty in the world and no one has the power to destroy it.

So, to ignore truth will be a futile attempt and only the inward beauty has the power to be the ever-lasting truth and the outward appearances are momentary. But our thoughts want to find out the truth and our feelings are inspired by the beauty. Thus, thought and feeling, truth and beauty need to go hand in hand.

5. Fools Rush in Where Angels Fear to Tread – (Alexander Pope)

“Experience is the best teacher”. The inexperienced people do not judge the pros and cons of the situation and take a step without much thinking. The experienced people become mature enough to take. a cautious step before taking a hasty decision. Their experience has taught them to “wait and watch” and then decide whether to avoid or get involved.

“A little learning is a dangerous thing”. The prudent and intelligent person think twice before opening their mouth and are also good observers. They are actually “afraid” but they are also careful that their actions should be safe and so they stay away from unnecessary risks. Even if they take risk believing “no risk, no gain”, they are capable of measuring the extent of the risk to reach their final decision. But a so called “fool” or rather an unwise person does not bother to think and can be easily influenced to do stupid things to invite problems in life.

“Ignorance” is not always “bliss”, since ignorance can lead to a irreversible damage. But, if a wise person is ignorant about certain things, he knows how to keep a distance from the unknown territory. The proverb actually tries to create an awareness against quick decisions or may be judgements, because every step of life is important. One wrong step, taken in a hurry, can lead to a major set back which probably will bring the disaster. History stands proof for that.

(A2)

Question 1.
Complete the tabular columns to specify Dos and Don’ts associated with ‘Expansion of Ideas’.
Answer:

Expansion of ideas
Dos	Don’ts
1. Begin impressively	1. Don’t go off-track
2. Use clear symbolism	2. Do not remove topic sentence
3. Focus on words and expression	3. Do not add irrelevant points
4. Should be unity and clarity of thoughts	4. Don’t use too many ideas

Yuvakbharati English 11th Digest Chapter 3.1 Expansion of Ideas Additional Important Questions and Answers

Question 1.
Expand the idea inherent in the following proverbs:
Answer:
(i) Rome was not Built in a Day

Big cities cannot be built very quickly. This actually refers to jobs that we undertake, our careers, our life and our achievements.

Just as Rome was not built in a day, so also our career, our life and our ambitions cannot be achieved in a short period of time. We must bear in mind, before we take up a project, that hard work has to go into making any endeavor a success. Success is 99% perspiration and 1% inspiration. We are aware of this, but do we honestly put in hard work or do we keep putting off our hard work for another day?

Rome took years to be built and once it was built it turned out to be a city beyond compare. Its beauty and its allure was incomparable. This was and is the result of dedication and hard work. We will achieve our goal and rise to the top only, and only if we understand the meaning of dedication, perseverance and hard work.

The three D’s must always be in our mind when we undertake a task to be done. The three D’s are- Dedication, Determination and Devotion. We will be able to touch the stars if we work hard and devote ourselves to the task ahead of us. We should not think of finishing our job in haste because haste makes waste. Only our determination and hard work will help us to achieve our aim in life.

(ii) Cut Your Coat According to Your Cloth

This proverb is something that all of us must bear in mind and abide by. The message that is given is that we must not spend beyond our means but be very careful with our expenditure.

The explanation is that if we give a piece of cloth to a tailor to stitch a coat, he will first measure the cloth and tell us whether it is possible, for him to make the coat we have asked for or not. If the cloth is insufficient, he will not be able to stitch the coat.

The same is the case with our income and expenses. We must always stay within the limits and not spend more than we can afford to or we will end up repenting. I know of a young man who wanted everything he saw advertised and he kept on buying the articles on installment-basis. Finally, he realized that the total amount he had to pay by way of the installments exceeded his income. The young man borrowed the money to make up the deficit.

How long could he go on in this way? His loans increased. People refused to give him more loans, since he could not pay back what he had already borrowed. Finally no one could wait to get the money they had given him on loan. He lost everything he had bought on installments and he landed in jail. His entire life had become one big mess – No money, no friends.

Could we too, end up like this young man? Yes, we could end up like this if we do not keep a track of the money we have and if we do not spend according to our means. This proverb teaches us to economies and to be frugal. We must learn how to manage our resources and live within our means. This will surely keep us out of trouble.

(iii) Empty Vessels Make the Most Sound

We have experienced this fact a number of times at home or even in school. When we strike on an empty vessel, we get a sonorous deep sound and if we strike on a vessel that is full of some liquid, we get only a dull thud. The above adage is metaphorically and literary correct.

We see around us people with no knowledge or very little knowledge making themselves heard above the rest and when they are questioned we realise that all is empty talk, they are just ignorant people who are trying to impress the crowd. Those who really have the knowledge are the ones who are not making a loud noise. They check out on the situation and open their mouths. What they say is the correct thing. They have knowledge and they use it wisely and correctly.

When we are in company, we must not try to prove to all present there, that we are the best, there is no one as knowledgeable as we are. We must use our etiquette and let the others have their say. We must realise that there are many who have more knowledge than we do.

It is very important to learn that when in company, we must give others the chance to have their say and not monopolies all the time such people are respected by others.

(iv) As you Sow, So shall you Reap

If we want to earn good things in life, we must do good things. If a farmer wants to cultivate rice, he will sow rice and not wheat. There was once a person who was not well to do and was really downtrodden and poor. This man had a very large heart. Whatever little food he got, he shared with others. There were times when he went without food, but he saw to it, that the beggars around had food to eat.

The neighbours observed this and decided to help this poor, warm-hearted person. They gave him an education. The man studied very hard and did well. The neighbours were very pleased. They gave him a job and he did very well. This man however never forgot the beggars and always bought them food and clothing.

Soon the poor man rose higher and higher and became the manager of the factory. He helped all the poor and even started a special “Society for the poor”. The man helped others and in return, he was helped. All of us must do well if we expect others to do good to us.

Balbharati Maharashtra State Board 11th Commerce Maths Solution Book Pdf Chapter 9 Commercial Mathematics Ex 9.3 Questions and Answers.

Maharashtra State Board 11th Commerce Maths Solutions Chapter 9 Commercial Mathematics Ex 9.3

Question 1.
What would be the simple interest on an amount of ₹ 9,600 at the rate of 6% per annum after 3 years?
Solution:
Given Principal P = ₹ 9600
Rate of interest R = 6% p.a.
Number of years = T = 3
Simple Interest I = \(\frac{\text { PRT }}{100}\)
= \(\frac{9600 \times 3 \times 6}{100}\)
= 96 × 18
= 1728
∴ Simple interest after 3 years would be ₹ 1728

Question 2.
What would be the simple interest at the rate of 9\(\frac{1}{2}\)% per annum on ₹ 6,000 for 2\(\frac{1}{2}\) years?
Solution:
Rate of interest per annum R = 9\(\frac{1}{2}\)% = \(\frac{19}{2}\)%
Principal P = ₹ 6000
Duration T = 2\(\frac{1}{2}\) = \(\frac{5}{2}\) years
∴ Simple Interest, I = \(\frac{\text { PRT }}{100}\)
= 6000 × \(\frac{19}{2} \times \frac{5}{2} \times \frac{1}{100}\)
= 15 × 19 × 5
= 1425
∴ Simple interest would be ₹ 1425.

Question 3.
What would be the simple interest on ₹ 8,400 in 9 months at the rate of 8.25 percent per annum?
Solution:
Principal P = ₹ 8400
Rate of interest R = 8.25%
Duration T = 9 months = \(\frac{3}{4}\) years

∴ Simple interest would be ₹ 519.75.

Question 4.
What would be the compound interest on ₹ 4200 for 18 months at 10% per annum compounded half yearly?
Solution:
Principal P = ₹ 4200
Rate of interest R = 10%
Duration T = 18 months = 1.5 years
compounding is done half yearly

= \(\frac{4200 \times 9261}{2000}\)
= 4862.025
I = A – P
= 4862.025 – 4200
= 662.025
∴ Compound interest would be ₹ 662.025.

Question 5.
Find compound interest on ₹ 10,000 for 2 years at 8% per annum compounded half yearly.
Solution:
Principal P = ₹ 10,000
Rate of interest R = 8% p.a. compounded half yearly
Duration T = 2 years

I = A – P
= 11648.58 – 10000
= 1698.58
∴ Compound interest is ₹ 1698.58.

Question 6.
In how many years ₹ 1,00,000 will become ₹ 1,33,100 at compound interest rate of 10% per annum?
Solution:
Principal P = ₹ 1,00,000
Amount A = ₹ 1,33,100
Rate of interest R = 10% p.a.

∴ ₹ 1,00,000 will become ₹ 1,33,100 after 3 years.

Question 7.
A certain sum of money becomes three times of itself in 20 years at simple interest. In how many does it become double of itself at the same rate of simple interest?
Solution:
Given that, sum of money triples itself in 20 years
∴ P + I = 3P
∴ I = 2P
and T = 20 years
Now simple interest I = \(\frac{\text { PRT }}{100}\)
∴ 2P = \(\frac{\mathrm{P} \times \mathrm{R} \times 20}{100}\)
∴ R = 10
∴ Rate of interest = 10% per annum
The time period is to be calculated for the condition that the sum doubles itself i.e. for the condition
P + I = 2P
i.e. I = P
\(\frac{\mathrm{P} \times \mathrm{R} \times \mathrm{T}}{100}\) = P
∴ \(\frac{10 \times T}{100}\) = 1
∴ T = 10
∴ The sum will become double of itself in 10 years.

Question 8.
A person borrows 10,000 for 2 year at 4% p.a. simple interest he immediately lends it to another person at 6.5% p.a. for 2 years. Find his total gain in the transaction.
Solution:
Person borrows money at 4% per annum and lends it at 6.5% per annum.
∴ His gain is (6.5 – 4) = 2.5% on ₹ 10000 for 2 years
i.e. gain = \(\frac{1000 \times 2.5 \times 2}{100}\)
= 100 × 5
= ₹ 500
∴ The person will gain ₹ 500 in this transaction.

Question 9.
A man deposits X 200 at the end of each year in recurring account at 5% compound interest. How much will it become at the end of 3 years?
Solution:
At end of 1st year, 2nd year and 3rd year ₹ 200 were deposited.
Rate of interest R = 5% p.a.
At end of 3 years, amount
= 200 + \(200\left[1+\frac{5}{100}\right]+200\left[1+\frac{5}{100}\right]^{2}\)
= 200 [1 + 1.05 + (1.05)2]
= 200 [2.05 + 1.1025]
= 200 [3.1525]
= 630.5
At end of 3 years, the account will have a balance of ₹ 630.5.

Question 10.
A man gets a simple interest of ₹ 2,000 on a certain principal at the rate of 5% p.a. in 4 years. What compound interest will the man get on twice the principal in 2 years at the same rate.
Solution:
Let Principal amount = P
Simple Interest I = ₹ 2000
Rate of interest R = 5% p.a.
Time duration T = 4 years
I = \(\frac{\text { PRT }}{100}\)
∴ 2000 = \(\frac{\mathrm{P} \times 5 \times 4}{100}\)
∴ P = 10000
Twice the principal was invested for compound interest with the same rate of interest for 2 years.
Here, P = 2 × 10,000 = ₹ 20,000
∴ Amount received,

I = A – P = 22050 – 20000 = 2050
The man will receive ₹ 2050 as compound interest.

Question 11.
The difference between simple interest and compound interest on a certain sum of money is ₹ 32 at 8% per annum for 2 years. Find the amount.
Solution:
Compound Interest = A – P = \(\mathrm{P}\left(1+\frac{\mathrm{R}}{100}\right)^{\mathrm{T}}-\mathrm{P}\)
Simple interest = \(\frac{\text { PRT }}{100}\)
Given R = 8%, T = 2 years and
compound interest – simple interest = ₹ 32

∴ The man will receive a compound interest of ₹ 5000.

Balbharti 12th Maharashtra State Board Maths Solutions Book Pdf Chapter 3 Indefinite Integration Ex 3.1 Questions and Answers.

Maharashtra State Board 12th Maths Solutions Chapter 3 Indefinite Integration Ex 3.1

I. Integrate the following functions w.r.t. x:

(i) x³ + x² – x + 1
Solution:

(ii) \(x^{2}\left(1-\frac{2}{x}\right)^{2}\)
Solution:

(iii) \(3 \sec ^{2} x-\frac{4}{x}+\frac{1}{x \sqrt{x}}-7\)
Solution:

(iv) \(2 x^{3}-5 x+\frac{3}{x}+\frac{4}{x^{5}}\)
Solution:

(v) \(\frac{3 x^{3}-2 x+5}{x \sqrt{x}}\)
Solution:

II. Evaluate:

(i) ∫tan² x . dx
Solution:

(ii) \(\int \frac{\sin 2 x}{\cos x} \cdot d x\)
Solution:

(iii) \(\int \frac{\sin x}{\cos ^{2} x} \cdot d x\)
Solution:

(iv) \(\int \frac{\cos 2 x}{\sin ^{2} x} \cdot d x\)
Solution:

(v) \(\int \frac{\cos 2 x}{\sin ^{2} x \cdot \cos ^{2} x} \cdot d x\)
Solution:

= -cot x – tan x + c

(vi) \(\int \frac{\sin x}{1+\sin x} \cdot d x\)
Solution:

(vii) \(\int \frac{\tan x}{\sec x+\tan x} \cdot d x\)
Solution:

(viii) \(\int \sqrt{1+\sin 2 x} \cdot d x\)
Solution:

(ix) \(\int \sqrt{1-\cos 2 x} \cdot d x\)
Solution:

(x) ∫sin 4x cos 3x dx
Solution:

III. Evaluate:

(i) \(\int \frac{x}{x+2} \cdot d x\)
Solution:

(ii) \(\int \frac{4 x+3}{2 x+1} \cdot d x\)
Solution:

(iii) \(\int \frac{5 x+2}{3 x-4} \cdot d x\)
Solution:

(iv) \(\int \frac{x-2}{\sqrt{x+5}} \cdot d x\)
Solution:

(v) \(\int \frac{2 x-7}{\sqrt{4 x-1}} \cdot d x\)
Solution:

(vi) \(\int \frac{\sin 4 x}{\cos 2 x} \cdot d x\)
Solution:

(vii) \(\int \sqrt{1+\sin 5 x} \cdot d x\)
Solution:

(viii) ∫cos² x . dx
Solution:

(ix) \(\int \frac{2}{\sqrt{x}-\sqrt{x+3}} \cdot d x\)
Solution:

(x) \(\int \frac{3}{\sqrt{7 x-2}-\sqrt{7 x-5}} \cdot d x\)
Solution:

IV.

Question 1.
If f'(x) = x – \(\frac{3}{x^{3}}\), f(1) = \(\frac{11}{2}\), find f(x).
Solution:
By the definition of integral,

Balbharti Maharashtra State Board Class 11 History Solutions Chapter 5 Janapadas and Republics Textbook Exercise Questions and Answers.

Maharashtra State Board Class 11 History Solutions Chapter 5 Janapadas and Republics

1A. Choose the correct alternative and write the complete sentences.

Question 1.
A region occupied by the ‘janas’ was called as __________
(a) Ganarajya
(b) Janapada
(c) Mahajanapada
(d) Gotra
Answer:
(b) Janapada

Question 2.
The principal functionary of a Ganasangha was known as __________
(a) Senapati
(b) Bhandagarika
(c) Raja
(d) Uparaja
Answer:
(c) Raja

Question 3.
The author of the ‘Ashtadhyayi’ which mentions ‘Janapadin’ was __________
(a) Kautilya
(b) Panini
(c) Chanakya
(d) Vyas
Answer:
(b) Panini

Question 4.
The sense of territoriality and the ensuing awareness __________ were the main factors responsible for the formation of ancient Janapadas in India.
(a) of unity
(b) of authority
(c) of autonomy
(d) of public authority
Answer:
(c) of autonomy

1B. Find the incorrect pairs from set ‘B’ and write the correct ones.

Question 1.

Set ‘A’	Set ‘B’
(a) Praachya	of the east
(b) Praatichya	of the west
(c) Udichya	of the north
(d) Aparanta	the region to the north of Vindhya ranges

Answer:
(d) Aparanta – the region to the south of Vindhya ranges

2. Choose the correct reason and complete the sentence.

Question 1.
The Ganasangha of the Youdhey, Malav, Kshudraka were mentioned as Ayudhajivi. Because-
(a) it was in the northeast region of the Indian Subcontinent.
(b) these people were skilled warriors and warfare was the means of their livelihood.
(c) they were skilled in trade and commerce.
(d) these were the ganasanghas dependent on agriculture and animal husbandry.
Answer:
(b) these people were skilled warriors and warfare was the means of their livelihood.

3. Complete the concept map.

Question 1.

Answer:

4. Explain the concepts with examples.

Question 1.
Ganarajya and Sangharajya
Answer:

• ‘Gana’ means the ruling class comprising members of equal social status.
• Similarly, ‘sangha’ means a state formed by many kulas or janapadas by coming together.
• By the 6th century B.C.E. many sangharajyas had come into existence.
• There were three main types of the ancient federation of states in India:
• Ganarajya of the members of the same kula. For example, Malava and Shibi.
• Ganarajya was created by more than one kulas coming together. For example, Vajji Ganasangha. It included eight kulas. Vajji, Lichchhavi, Dnyatruk, and Videha were the important ganas among them.
• More than one ganrajyas coming together to create a sangharajya. For example, Yaudheya- Kshudrak Sangh.

Question 2.
Vartashastarpajivi Ganasnagh
Answer:

• Ancient Indian literature mentions two more types of ganasanghas.
• ‘Ayudhjivi’ sangh and ‘Varta-Shastropajivi’ sangh.
• ‘Varta’ means trade and commerce.
• The people in the Varta-Shastropajivi ganasanghas lived by trade and commerce, agriculture and animal husbandry, as well as their skills in warfare.
• People in the Kamboj and Saurashtra ganasanghas earned their livelihood by these means.

Question 3.
‘Jana’ and ‘Janapada’
Answer:

• Vedic people used the term Jana to designate a group of people, united under a common bond of singular kinship structure.
• Their settlement was known as ‘Grama’.
• A cluster of gramas consisting of the same Jana was known by the name of that particular Jana.
• A region occupied by a Janas was called Janapada.
• Gradually the Janapadas had more formal administrative structures transforming them into independent states.
• These were the first well-established states of ancient India.
• However, this does not necessarily mean that every Janapada evolved into an independent state.

5. Answer the following questions in detail.

Question 1.
Describe the democratic and oligarchic states in ancient India.
Answer:
Democratic States:

• Some of the ganasanghas were divided into regional zones called ‘Khanda’.
• They functioned through a group of elected individuals, who were found capable.
• Each of the elected members represented his respective khanda.
• These elected members were installed with collective authority for the smooth running of the ganasangha.
• This was a democratic system. Ganasanghas which functioned in this democratic way existed in Punjab and Sindh at the time of Alexander’s invasion.
• Each elective representative of the respective regional zone was designated as ‘Ganamukhya’.
• Every ganamukhya was a member of the assembly known as ‘ganaparishada’.
• The decisions made by the ganaparishada were implemented by designated functionaries of various cadres.
• He was known as the ‘Adhyaksha’ or ‘Raja’.

Oligarchic States:

• In this type the elite class in the society held all the powers of decision-making and administration,
• Panini and Kautilya mention them as ‘Rajshabdopajivi’ Sangh.
• Panini includes Vajji, Andhaka, Vrishni, Yaudheya in the Rajashabdopjivi type.
• Kautilya includes the Vrijji or Vajji, Madrak, Kuru, Panchala, etc. in this type.
• This type of ganasanghas was more prevalent in the eastern region of Uttar Pradesh and Bihar.

Activity

Present an act in the class based on the simulation of the administrative system of an oligarchic state.
Answer:
Students have to make the presentation in class.

Balbharti Maharashtra State Board Class 11 History Solutions Chapter 4 Vedic Period Textbook Exercise Questions and Answers.

Maharashtra State Board Class 11 History Solutions Chapter 4 Vedic Period

1A. Choose the correct alternative and write the complete sentences.

Question 1.
The importance of agriculture is clearly emphasised in the ______________ mandala of the Rigveda.
(a) 4th
(b) 10th
(c) 8th
(d) 6th
Answer:
(b) 10th

Question 2.
A potter is mentioned as an artisan in the ______________ for the first time.
(a) Rigveda
(b) Yajurveda
(c) Samaveda
(d) Atharvaveda
Answer:
(b) Yajurveda

Question 3.
The god who protected the animals was known as ______________
(a) Indra
(b) Pushan
(c) Ashwin
(d) Varun
Answer:
(b) Pushan

1B. Find the incorrect pair from set ‘B’ and write the correct ones.

Question 1.

Set ‘A’	Set ‘B’
(a) Nishka	Gold ornament
(b) Barley	Maincrop of the Vedic people
(c) Krishtya	The apparatus of drawing water from the well
(d) Navya	River transport

Answer:
(c) Krishtya – Tribal settlements

1C. Write the names.

Question 1.
A branch of linguistics.
Answer:
Philology

Question 2.
A battle was fought among the ten tribal chiefs.
Answer:
Dasharajnya Yuddha

Question 3.
Cultivable land prepared by ploughing.
Answer:
Urvara

2. Complete the concept map given below:

Question 1.

Answer:

3. Choose the correct reason and complete the sentence.

Question 1.
Panis were looked upon as enemies by the Vedic people because-
(a) they belonged to a different tribe.
(b) their language was impure.
(c) Panis used to steal the cattle of the Vedic people.
(d) Panis did not obey the orders of the Vedic people.
Answer:
(c) Panis used to steal the cattle of the Vedic people.

4. State your opinion.

Question 1.
There is a debate about the original home of the Aryans.
Answer:

• The debate began in the 16th Century. Till then the concept of the ‘Aryans’ was not known.
• The European academics became aware of the similarities between Sanskrit and Latin-Greek languages.
• This resulted in the notion of the Indo-European language family which gave momentum to the search for a Mother language from which developed the Indo-European languages.

Question 2.
The Rigvedic people subsisted on agriculture.
Answer:

• The Rigvedic tribal settlements have been mentioned as ‘Krishtya’ in the Rigveda. ‘Krish’ means ploughing.
• Hence the people who ploughed and also their settlements were mentioned as ‘Krishtya’.
• The importance of agriculture is clearly emphasised in the 10th mandala of Rigveda.
• It states that for the farmer his ploughshare is the means of obtaining.

5. Explain the following concepts.

Question 1.
Origin of Aryan people.
Answer:

• There are multiple unanswered questions, such as, who were the Aryans, did they arrive in India from a distant place or were they natives of India, which are the archaeological sites where the remains of their culture are found, how to identify those remains, etc.
• Most of the information about their culture is derived from Vedic literature. There are various v opinions about the chronology of the Vedic culture.
• However, there is a general agreement that the Vedic people composed Rigveda in India around 1500 B.C.E.
• However, Lokmanya Tilak calculated this date as 6000 B.C.E. on the basis of astronomical events.
• He was also of the opinion that the original home of the Aryans was in the Arctic region.
• This debate began in the 16th century. Till then the concept of the ‘Aryans’ was not known.

Question 2.
Indo-European family of languages.
Answer:

• In the year 1583, an Italian merchant by the name of Filippo Sassetti came to Kochi (Cochin) the port city in Kerala.
• He never returned to his motherland. He stayed in Kerala and Goa. During his stay, he wrote detailed letters to his family members about Indian life, language and culture. He happens to be the first European who wrote about his observations of Indian society.
• He also studied Sanskrit. He was the first one who observed the similarities between Sanskrit and Latin.
• His observations could be said to be the first, to give impetus to the notion of a family of Indo-European languages.

Balbharti Maharashtra State Board Class 11 History Solutions Chapter 3 Chalcolithic Villages in India Textbook Exercise Questions and Answers.

Maharashtra State Board Class 11 History Solutions Chapter 3 Chalcolithic Villages in India

1A. Choose the correct alternative and write the complete sentences.

Question 1.
On one of the cemetery H pots, dead humans are seen carried by ____________ in their stomach.
(a) deer
(b) peacock
(c) fish
(d) bull
Answer:
(b) peacock

Question 2.
The archaeological evidence shows that Balathal was a center of mass production of ____________
(a) stone pots
(b) copper pots
(c) earthen pots
(d) glassware
Answer:
(c) earthen pots

Question 3.
Permanent villages of farmers were first established in Maharashtra by ____________ people.
(a) Savalda
(b) Malwa
(c) Harappa
(d) Kayatha
Answer:
(b) Malwa

1B. Find the incorrect pair from set ‘B’ and write the correct ones.

Question 1.

Set ‘A’	Set ‘A’
1. Savalda Culture	Daimadabad
2. Malwa Culture	Navadatoli
3. Ahar Culture	Sonpur
4. Jorwe Culture	Inamgaon

Answer:
3. Ahar Culture – Balathal

2A. Explain the statements with reasons.

Question 1.
Harappan people had to migrate.
Answer:

• When the Mature (urban) Harappan civilisation collapsed completely, the people of Late Harappan cultures who had settled on the ruins of Mature Harappan cities had to migrate elsewhere.
• The urban Harappans and the Late Harappans dispersed. Wherever these people reached, new rural cultures came into being.
• Thus, as the Harappan civilisation collapsed, Harappan people had to migrate.

Question 2.
People of ‘Malwa’ culture were the first farmers of Maharashtra.
Answer:

• The people of Malwa culture reached Maharashtra around 1600 B.C.E. Permanent villages of farmers were first established in Maharashtra by the Malwa people.
• After arriving in Maharashtra, they came into contact with the neolithic people in Karnataka.
• It resulted in a few changes in the pot-making technology of Malwa people as far as shapes of the pots and designs are concerned.
• Thus, they were considered the first farmers of Maharashtra as they were the first to establish in Maharashtra.

3. State your opinion.

Question 1.
It seems that the Harappan people had gone as far as Bihar.
Answer:

• Chalcolithic sites have been discovered in Bihar, Bengal, Odisha, and Madhya Pradesh.
• The excavations at sites like Chirand, Sonpur, etc. yielded earthen pots of black-and-red ware.
• The shapes of these pots are similar to those of Harappan culture.
• Thus, it seems that the Harappan people had gone as far as Bihar, and the local cultures were influenced by them.

4. Write short notes.

Question 1.
Banas Culture
Answer:

• The chalcolithic culture in India generally belongs to, the Post-Harappan period.
• However, the ‘Ahar’ or ‘Banas’ culture in the Mewad region of Rajasthan was contemporary to the Harappan civilisation.
• Balathal and Gilund are important sites of Ahar culture.
• It was first discovered at Ahar near Udaipur, so it was named as ‘Ahar’ culture.
• Ahar is a tributary of the river Banas, so it is also known as ‘Banas culture’.

Question 2.
Malwa Culture
Answer:

• The name ‘Malwa’ tells us that this culture originated and spread first in the Malwa region.
• It flourished in Madhya Pradesh during 1800 B.C.E. – 1200 B.C.E. Navadatoli, situated on the bank of Narmada is an important site of Malwa culture.
• The people of Malwa culture reached Maharashtra around 1600 B.C.E.
• Permanent villages of farmers were first established in Maharashtra by the Malwa people. They were the first farmers of Maharashtra.

Question 3.
Kayatha Culture
Answer:

• Kayatha is a chalcolithic site situated on the banks of the river known as Chhoti Kali Sindh at a distance of 25 km from Ujjain in Madhya Pradesh.
• Kayatha culture was contemporary to the Harappan civilisation.
• The Kayatha people followed agriculture and animal husbandry.
• They mainly used handmade pots and microliths.

5. Write about the chalcolithic cultures in Gujarat with the help of the given points.

Question 1.
(a) Period
(b) Means of livelihood
(c) Geographical spread
(d) Evidence of cultural contact with other people.
Answer:
(a) Period: The chalcolithic settlements in Gujarat coincide with the following phases of the Harappan culture:

• Early Harappan phase (3950-2600 B.C.E.)
• Mature (urban) phase (2600-1900 B.C.E.)
• Post-Harappan phase (1900-900 B.C.E.)

(b) Means of livelihood: There are ample sources of semi-precious stones in Gujarat. Making beads of these stones was a big industry during Harappan times. The Neolithic settlements in Gujarat played a major role in procuring these stones. People residing in the neolithic settlements of Gujarat were mainly pastoral, that is people whose primary occupation was animal husbandry. Thus, making beads, animal husbandry, pottery making were some of the means of livelihood.

(c) Geographical spread: There are regional variations in the characteristics of the chalcolithic cultures of Gujarat. The chalcolithic pottery of Kutch – Saurashtra and Northern Gujarat are distinct from each other. The chalcolithic villages in Kutch-Saurashtra were abandoned by 1900 B.C.E.

(d) Evidence of cultural contact with other people: In the post-Harappan period there were two chalcolithic cultures in Gujarat. The culture in south Gujarat was known as ‘Prabhas’ culture and the one in northeastern Gujarat was known as ‘Rangpur’ culture. These cultures existed till 1800-1200 B.C.E.

Activity

With the help of the Internet, reference books, field trips, newspaper articles, etc. obtain pictures of excavated artifacts and architectural remains and arrange an exhibition under the guidance of your teachers.
Answer:
To be done by students.

Balbharti Maharashtra State Board Class 11 History Solutions Chapter 2 First Cities of India Textbook Exercise Questions and Answers.

Maharashtra State Board Class 11 History Solutions Chapter 2 First Cities of India

1. Choose the correct alternative and write the complete sentences.

Question 1.
In the early phase of agriculture, making __________ pots and farming were the jobs of women.
(a) copper
(b) bronze
(c) earthen
(d) stone
Answer:
(c) earthen

Question 2.
Lothal is known for its ancient __________
(a) agriculture
(b) dock
(c) textiles
(d) tools
Answer:
(b) dock

Question 3.
A general impression prevailed that the Harappan seals had some connection with the __________ civilisation.
(a) Chinese
(b) Greek
(c) Mesopotamian
(d) Egyptian
Answer:
(c) Mesopotamian

Question 4.
The bodies (mummies) of dead royalties in Egypt were wrapped in __________ coloured cloth.
(a) white
(b) black
(c) red
(d) blue
Answer:
(d) blue

2A. Choose the correct reason and complete the sentence.

Question 1.
The major reason for the decline of the Mesopotamian civilisation was __________
(a) foreign invasion
(b) deteriorating environment
(c) loss in trade
(d) migration
Answer:
(b) deteriorating environment

2B. Find the incorrect pair from set ‘B’ and write the correct ones.

Question 1.

Set ‘A’	Set ‘B’
(a) Dilmun	Bahrain
(b) Makan	Oman-Iran-Baluchistan Coastal region
(c) Shortugai	Mesopotamia
(d) Meluhha	Region of Harappa civilisation

Answer:
(c) Shortugai – Badakshan province of Afghanistan

3. Explain the statements with reasons.

Question 1.
The remains found in cities like Harappa, Mohenjodaro, Kalibangan, Lothal, Dholavira, Rakhigarhi, etc. are evidence of the past glory of this civilization.
Answer:

• A well-developed and rich civilisation flourished in the Indian subcontinent in the period from 3500-3000 B.C.E.
• This period is characterised by systematic town planning, with houses of baked brick, granaries, excellent drainage systems, public baths, and impressive public movements.
• Good administrative control over the distribution of water and other resources.
• Remains also prove a good social organisation, a proper social hierarchy based on the position of power.
• Flourishing internal and distant trade, mass production of goods, and craft specialisation developed writing system of script on Harappan seals give evidence of the past glory of the civilisation.

Question 2.
Lapis lazuli had a very important place in the Harappan trade.
Answer:

• A network of small towns, big and small villages, and campsites of semi-nomadic people functioned to cater to the needs of major urban centres of the Harappan civilisation.
• The Harappan settlement of ‘Shortugai’ in the Badakshan province of Afghanistan, is rich with mines of lapis lazuli, a semi-precious stone in Mesopotamia.
• The Mesopotamian epics describe Goddess Inanna’s palace, the walls of which were embedded with this stone, lapis lazuli.
• This stone was a very important commodity in the Harappan trade with Mesopotamia.

Question 3.
Harappan civilisation declined.
Answer:

• Sir Mortimer Wheeler in his study has concluded that the Harappan civilisation was destroyed by Indra, who destroyed the fortified cities.
• Vedic Aryans destroyed the Harappan cities under the leadership of Indra.
• The civilisation also declined due to the cumulative effects of factors such as the decline in trade, climatic changes, and the weakening of the economy.

4. State your opinion.

Question 1.
The Harappan cities and villages in the vicinity were interdependent.
Answer:

• The interrelationship between Harappan cities and villages was dependent on the mechanism of making available food grains and raw materials.
• A network of small towns, big and small villages, and campsites of semi-nomadic people, functioned to cater to the needs of major urban centres of Harappan civilisation.
• The city people were dependent on natural sources and villages in their vicinity, to meet the needs of urban lifestyle and urban administration.

Question 2.
The Harappan cities seem to have a well-organised administrative system.
Answer:

• The Harappan cities had a well organised administrative system to manage industrial production, import-export, the interrelationship between cities managing trading operations and villages around them.
• The town planning, standardization of bricks, weights, seals, shapes, and ornamentation of various objects, confirm the presence of an efficient administrative system.
• Cities like Harappa and Mohenjodaro were perhaps regional capitals.
• Lothal and Kalibangan were important religious centres.
• However, the nature of Harappan polity, whether it was a single state or a federation of small states, is not yet known.

5. Answer the following questions with the help of given points.

Question 1.
Write about the characteristics of Harappan cities with the help of the given points:
(a) Town planning
(b) Social organisation
(c) Administration
(d) Economy
Answer:
(a) Town planning:

• The town planning of Harappan cities was very systematic.
• Houses were of baked bricks, which included bathrooms, toilets, wells.
• Granaries existed, with impressive public monuments.
• The excellent drainage systems, public baths, and independent fortification walls are highlights.
• The grid pattern was used, where streets crossed each other in right angles, and the resulted blocks were used for building houses.
• The English bond masonry method was used with two headers and two stretchers to build a wall, which was especially useful for earthquake-prone areas.

(b) Social organisation:

• Social hierarchy was based on the position of power.
• Classes of skilled artisans and individuals were based on craft specialisation.
• Belief systems existed, with evidence of burials indicating rituals after death.
• Artifacts and architecture also indicate belief systems.

(c) Administration:

• Administrative control existed over the distribution of water and other resources.
• The size of bricks indicates the use of standardisation and ratio.
• Weights, set style of shapes and painted designs of pottery, majestic and non-residential buildings for public administrative offices are also seen.

(d) Economy:

• Harappan civilisation practiced mass production of goods for trade purposes.
• The concentration of factories and residences of artisans in a particular area of the city indicates the purpose of convenience of production, flourishing internal and distant trade, and administrative control over trade transactions.
• Well-shaped, beautiful earthen pots, statues, metal objects of gold, silver, copper, and bronze were made.
• Various types of beads were prepared, indicating a sound economy.

Activity

Collect information and illustrations with the help of the internet about the town planning of the Harappan cities and Chandigarh. Compare them.
Answer:
The town planning of the Harappan Cities:

• The Harappans were the first to build planned cities with a scientific drainage system.
• Their cities were built on a uniform plan.
• The people of Indus valley lived a highly civilized and developed life.
• This highly developed and scientific plan can be seen in the following areas.

Streets:

• The streets were straight and cut each other at right angles
• They were 13 to 34 feet wide and were well lined.
• The streets and roads divided the city into rectangular blocks.
• Lamp posts were provided at regular intervals.
• Dust bins were also provided on the streets which proves the presence of a good municipal administration.

Drainage System:

• The city was provided with an excellent closed drainage system.
• Each house had its own drainage and soak pit which was connected to the public drainage.
• Brick-laid channels were found through every street.
• The drains were covered and had manholes at regular intervals for cleaning and clearing.
• Large brick culverts were constructed on the outskirts of the city to carry excess water.
• The Indus valley civilization had a perfect underground drainage system.

The Great Bath:

• The most striking feature of Mohenjo Daro is the Great Bath.
• It consists of a large quadrangle. In the center, there is a large swimming pool approx. 39 ft long, 23 ft wide, and 8 ft deep.
• This swimming pool had rooms and galleries on all four sides.
• It had a flight of steps at either end and a well in one of the adjoining rooms. The water was discharged by a huge drain.
• The Great Bath had 8ft thick outer walls.

Granaries:

• The largest building in Mohenjo Daro is the granary which is 45.71 m long and 15.23 m wide.
• Granaries have also been found in Harappa and the southern parts of Kalibangan.
• These granaries were used to store grains which were probably collected as revenue or storehouses to be used in emergencies.

Buildings:

• People of the Indus valley civilization built houses and other buildings on the side streets.
• Built terraced houses of burnt bricks.
• Every house had two or more rooms, there were also more than one-storied houses.

The town planning of Chandigarh City:

• Chandigarh, the capital of the northern Indian states of Punjab and Haryana was designed by the Swiss-French modernist architect, Le Corbusier.
• Buildings include the Capitol Complex with its High Court, Secretariat, and Legislative Assembly.

Balbharti Maharashtra State Board Class 11 Sociology Solutions Chapter 8 Social Change Textbook Exercise Questions and Answers.

Maharashtra State Board Class 11 Sociology Solutions Chapter 8 Social Change

1. (A) Choose the correct alternative and complete the statements.

Question 1.
Social change as a term is ………………
(value loaded / ethically neutral / prejudiced)
Answer:
Ethically neutral

Question 2.
The effects of an earthquake on people is a ………………. factor of change.
(geographical / biological / cultural)
Answer:
geographical

Question 3.
The study of sex ratio is a ………………. factor of change.
(biological / technological / natural)
Answer:
biological

Question 4.
The slum rehabilitation programme within a city is an example of ………………… social change.
(planned / unplanned / revolutionary)
Ans.
planned

1. (B) Correct the incorrect pair.

Question 1.
(a) Earthquake – Biological
(b) Fundamentalism – Economic
(c) Growing Urbanization – Technological
(d) E-governance – Physical
Answer:
(b) Fundamentalism – Socio – cultural factor

1. (C) Identify the appropriate term from the given options.

(Physical Factor, Educational Factor, Economic Factor)
Question 1.
Impact of rising sea water level on coastal regions.
Answer:
Physical factor

Question 2.
Creating awareness about the problem of sexual abuse.
Answer:
Educational factor

1. (D) Correct the underlined words and complete the sentence.

Question 1.
Social change is a linear process.
Answer:
Social change is a continuous process.

Question 2.
All teachers are expected to think about how they will teach a unit in the classroom. This is an example of unplanned change.
Answer:
All teachers are expected to think about how they will teach a unit in the classroom. This is an example of planned change.

2. Differentiate between.

Question 1.
Planned change and unplanned change.
Answer:

Planned change	Unplanned change
(i) Planned change occurs when purposeful changes are promoted by the government or other agencies.	(i) Unplanned change is a type of changes that is not planned. It happens suddenly.
(ii) In the case of planned cities in India, they have definite spaces marked for residence, parks, grounds, places of worship so on; the five years plans, educational plans, tribal welfare programmes, etc.	(ii) In the case of natural disaster, there is a loss of human and animal lives as well as property. Rehabilitation programmes have to be immediately designed and implemented for the affected persons.
(iii) Planned change occurs when deliberate decisions are taken to bring change.	(iii) Unplanned change is a result of unforeseen occurrences.
(iv) Planned social change is based on directions and goals.	(iv) Unplanned social change occurs without any directions or goals.

Question 2.
Short-term change and Long-term change.
Answer:

Short-term change	Long-term change
(i) Some social changes which may bring about immediate results are known as short-term change	(i) Some social change which may take years or decades to produce results are known as long-term change.
(ii) The purchase of new gadgets like home theatre for the purpose of entertainment within the home is rapid.	(ii) Giving up social evils like dowry, early marriage or domestic violence take decades to get rid of.
(iii) Short term change is change in material culture.	(iii) Long term change is change in non¬material culture.
(iv) Technological changes such as inventions and discovery play important role in bringing short term changes.	(iv) Social movements and revolutions play important role in bringing long term changes.

3. Explain the following concept with an example.

Question 1.
Social change is interactional chain reaction
Answer:
1. A single factor may trigger a particular change, but it is almost associated with other factors like physical, biological, technological, cultural, social, economic, which may together bring about a social change.

2. This is due to mutual interdependence of social phenomenon.
Example : A huge increase in school fees will have an impact on student enrolment. It may further result in higher dropouts especially for the girl child from the system of school. Increase in school fees is an economic factor which may give rise to social factor like problems of girls dropout.

Technological factor of social change:

1. Today, as we live in a digitalized world, we have been increasingly loaded with technology from our homes to our workplace.
2. Technological changes have affected our social, economic, religious, political, and cultural life.
3. Technological development creates new conditions of life and new conditions for adaptation. It continues to be an index of the overall progress of society.

Example : During the British period in India, systems of transportation and communication were laid. These may have served the needs of colonizers then, but we still continue to benefit from the systems.

Dysfunctional of social system:

1. The social system may become dysfunctional at times.
2. Hence, human beings have to make conscious efforts to help bring stability, balance and equilibrium in society.

Example : Emile Durkheim makes reference to anomic suicide where there is a state of normlessness or chaos, which can trigger off suicidal feelings that makes the social system dysfunctional.

Change in performance of social roles of individuals is also social change:

1. The social system comprises of social institutions like education, government, economy, etc., they regulate human contact, allocate roles and provide resources.
2. Social change also refers to change in performance of social roles of individuals according to changing times.

Example : In today’s Information Age, the role of a teacher in school is radically different than it was during the early Vedic period. There was marked differences in terms of the size of the school, learners, content of education, educational philosophy, methods of teaching and evaluation, etc.

Question 2.
Long term change

4. (A) Complete the concept maps.

Identify the significant factor of change for each.
Question 1.

inventions	——–
Effects of earthquake	——–
Declining sex ratio	——–
Student exchange programme	——-
Cultural diffusion	——–
Materialism	——–

Answer:

inventions	Technological factor
Effects of earthquake	Physical factor
Declining sex ratio	Biological factor
Student exchange programme	Educational factor
Cultural diffusion	Socio – cultural factor
Materialism	Economic factor

4. (B) State whether the following statements are true or false with reasons.

Question 1.
Prejudice and fear of the unknown is an obstacle to change.
Answer:
This statement is True.

1. Sometimes people are not open to change as they are too comfortable within their life.
2. Sometimes people don’t perceive the need to change prejudice or attitude towards a change also becomes obstacles.
3. Fear of unknown leads people to avoid difference.
   Hence, prejudice and fear of unknown is an obstacle to social change.

Question 2.
Social changes can be predicted accurately.
Answer:
This statement is False.

1. The concept of social change involves a transition in society from one state to another through time. The change depends upon complex factors. Hence social change cannot be predicted accurately.
2. Social change is not instant; it takes place over time. There is no inherent law of social change.
3. The forces of social change may not remain the same and the process of social change does not remain uniform.

5. Give your personal response.

Question 1.
Do you think people do not accept change easily? Why?
Answer:
Yes, I think people do not accept change easily. Customs and traditions which are embedded in society do not allow people to accept new ideas and acts as an obstacle to social change. Sometimes lack of motivation or interest also causes hindrance to social change. Even though social change is universal, there are more often some quarters of resistance to change.

Question 2.
Do you think the Swachh Bharat Abhiyan has had a positive impact on society? Justify your response.
Answer:
The physical environment has also been adversely affected by human behaviour in the name of development. In this era of global warming and climate change, everyone is striving towards a clean and safe India. The campaign of clean India, i.e., the Swachh Bharat Abhiyan is the biggest step taken over as a cleanliness drive and has a huge possible impact on society.

11th Sociology Digest Chapter 8 Social Change Intext Questions and Answers

ACTIVITY (Textbook Page No. 83)

Question 1.
Do a Google search for ‘Punk Hairstyle’.
Answer:
Relate ‘Punk Hairstyle’ to cultural change in society. The inspiration for the hairstyle came from the punk rock music in the 70’s. People have long been in the practice of using hair dyes to change the colour of their hair as a means of making themselves more attractive. Punks use hair dyes to make themselves appear different from mainstream society. One of the most common punk hairstyles is the Mohawk and use of bright colours on the hair.

Question 2.
You have learnt about the physical factor of social change. Now, write one page about how the natural calamities affect the life of people and society by giving some suitable examples. (Textbook Page No. 86)
Answer:
Natural disaster in India, cause massive losses of life and property. Droughts, cyclones, landslides pose greatest threat. Landslides are common in the lower Himalayas. Parts of Western Ghats also suffer from low intensity landslides. Floods are the most common natural disaster in India. The heavy southwest monsoon rain causes the Brahmaputra and other rivers to over-cross their banks, often flooding the surrounding areas. The floods kill and displace many. Temperatures in three Indian cities of Chennai, Mumbai and Delhi in the last five decades have seen a steady rise. This rise in temperature has led to a higher incidence of natural disaster storms, floods and drought, which have increased. The cost of damages has gone up. The latest cyclone Vayu in Gujrat have led to widespread devastation along parts of the eastern coast of India.

Question 3.
Try to understand the meaning of globalisation and observe changes brought about by globalisation in the world around you. (Textbook Page No. 88)
Answer:
Globalization is a process of integrating a country’s economy with the world economy with a view to exploit global opportunities for local growth. Globalization has resulted in both advantage and disadvantage for the Indian society. On one hand it has promoted the process of industrialization but on the other small-scale industries are the worst affected by the entry of large-scale multinational companies. Though globalization has increased the export of Indian industrial and agricultural products, there are lot of hindrance in path of export.

Globalization has led to new and better employment opportunities but there has been also a negative impact of globalization on the employment situation in India, since it has to shift many of its workers from the organized sector to the unorganized sector of Indian economy. It has promoted international travel and tourism leading to cultural exchange.

Question 4.
You have understood the importance of technological factor of social change. Now, try to collect the data from ten families in your neighbourhood, about the use of modern technology in their day-to-day life. (Textbook Page No. 89)
Answer:
Students should attempt this question on their own.

Question 5.
Study the educational transformation in the last 10 years e.g., Teach for India campaign (Textbook Page No. 90)
Answer:
Teach for India campaign have transformed the lives of children in low-income communities.
They have re-imagined education by being holistic and differentiated such that every single child learns and grows to his or her fullest potential. 37,920 children have learned across Teach for India classrooms; They are committed to a singular goal – an excellent education for all children. Teach for India is striving to end the problem of educational inequality in India.

Question 6.
Trace changes in fashions and eating habits followed by teenagers in the past decade. Make a pictorial album or photo essay to show the changes. (Textbook Page No. 91)
Answer:
Students should attempt this question of their own.

Balbharti Maharashtra State Board Class 11 Psychology Solutions Chapter 8 Memory Textbook Exercise Questions and Answers.

Maharashtra State Board Class 11 Psychology Solutions Chapter 8 Memory

1A. Complete the following statements.

Question 1.
One of the important processes for storage of information in the LTM is _____________
a. perception
b. elaborative rehearsal
c. encoding
Answer:
b. elaborative rehearsal

Question 2.
Memory is a/an _____________
a. activity
b. process
c. performance
Answer:
b. process

Question 3.
_____________ memory has the shortest duration.
a. Sensory
b. Short Term
c. Long Term
Answer:
c. Long Term

Question 4.
_____________ memory is also known as Working Memory.
a. Long Term
b. Accidental
c. Short Term
Answer:
c. Short Term

Question 5.
_____________ memory has unlimited capacity.
a. Sensory
b. Short Term
c. Long Term
Answer:
a. Sensory

Question 6.
The span of Short-Term Memory is _____________
a. 5+/-2
b. 7+/-2
c. 9+/-2
Answer:
b. 7+/-2

1B. State whether the following statements are true or false. If false, correct them. If true, explain why.

Question 1.
Our sense organs also have memory.
Answer:
True
Explanation: Our sense organs have the capacity to retain the sensory impression received through the five senses for a very short time even after the source stimulus is withdrawn. It is known as sensory memory.

Question 2.
Short-term memory has an unlimited capacity.
Answer:
False
Reason: STM holds the information between 15 to 30 seconds and the capacity of STM is about seven items at a time. Fleece, has limited capacity.

Question 3.
Conscious memory of facts and events is called explicit memory.
Answer:
True
Explanation: Explicit memory is a type of LTM that contains conscious memories of facts and events.

Question 4.
Implicit memory is the memory of skills.
Answer:
True
Explanation: Implicit memory is the unconscious memory of skills and how we do things, regarding the use of objects or movements of the body.

Question 5.
When we memorize meanings, concepts, and principles, it is called episodic memory.
Answer:
False
Reason: Episodic memory is a memory of experiences and specific events which we recall step by step to reconstruct actual events.

Question 6.
The method of relearning is also known as the saving method.
Answer:
True
Explanation: In relearning method, there is a saving of time taken to learn the same material. Fleece, this method is also known as the saving method.

Question 7.
The most vivid memory is flashbulb memory.
Answer:
True
Explanation: Flashbulb memories are vivid memories of what we were doing at the time of an emotion-provoking event.

1C. Identify the odd item from the following.

Question 1.
Encoding, Storage, Tip of the tongue (TOT), Retrieval
Answer:
Tip of the tongue (TOT)

Question 2.
Keyword method, Method of Loci, Chunking, Rote learning, First letter technique
Answer:
Rote learning

Question 3.
Sensory register, STM, Flashbulb memory, LTM
Answer:
Sensory register

Question 4.
Recall, Recognition, Relearning, Trace decay
Answer:
Trace decay

1D. Match the following pairs.

Question 1.

A	B
1. A technique to improve memory	a. Short-term memory
2. The most vivid memory	b. Declarative memory
3. Working memory	c. Implicit memory
4. Most organized memory	d. Flashbulb memory
5. Playing the harmonium after a long time	e. Method of Loci
6. Writing an essay on perceptual process	f. LTM
	g. Recall method
	h. Relearning method

Answer:

A	B
1. A technique to improve memory	e. Method of Loci
2. The most vivid memory	d. Flashbulb memory
3. Working memory	a. Short-term memory
4. Most organized memory	f. LTM
5. Playing the harmonium after a long time	c. Implicit memory
6. Writing an essay on perceptual process	g. Recall method

2. Answer the following questions in around 35-40 words each.

Question 1.
Explain any one example of Flashbulb memory from your life.
Answer:

• I clearly remember the day when my grandmother passed away.
• On that day, I had an omelet for breakfast and went to college around 10.30 a.m. I attended only two lectures and then received a call about this bad news. After that, my best friend accompanied me home.

Question 2.
Explain the model of working memory proposed by Baddeley.
Answer:

• Baddeley called STM a working bench of memory.
• In the working memory model given by him, a central executive is responsible for the coordination between sub-systems of the phonological loop, episodic buffer, and the visuospatial sketchpad.
• Both phonological loop and visuospatial sketchpad have two components.

Question 3.
Explain the Tip of the tongue (TOT) phenomenon with an example.
Answer:

• Sometimes, when we search through our library of experiences to retrieve information from LTM, we cannot recall it even when we have that information on the tip of the tongue.
• e.g. you want to recall the name of your cousin’s favourite clothing brand. Instead of that name, you recall all similar names.

Question 4.
Give an example of episodic memory.
Answer:

• I remember a four-day-long celebration of my sister’s wedding.
• It started with Haldi followed by Mehendi and the sangeet ceremony. After that, there was a grand wedding followed by a reception ceremony.
• I also remember all preparations, outfits that I wore, and the food that we had in those four days.

Question 5.
What is motivated forgetting?
Answer:

• Motivated forgetting is a behaviour in which people may forget unwanted memories either consciously or unconsciously.
• It is also called a conscious coping strategy but it should not be confused with defense mechanisms.
• There are two levels of motivated forgetting, viz. Repression and Thought suppression.

3. Compare and contrast.

Question 1.
STM and LTM
Answer:

• Only the significant sensory inputs enter the Short-Term Memory (STM) through maintenance rehearsal. On the other hand, some items in STM enter the Long-Term Memory (LTM) after elaborative rehearsal which makes information meaningful and connects the same with already existing information in the LTM.
• STM holds the information between 15 to 30 seconds and the capacity of STM is about seven items at a time. Conversely, once information enters LTM, it is retained more or less permanently and the amount of information stored in LTM is unlimited.

Question 2.
Implicit Memory and Explicit Memory
Answer:

• Implicit memory is the unconscious memory of skills and how we do things while explicit memory is conscious memory of facts and events.
• Implicit memory is also known as procedural memory while explicit memory is also known as declarative memory.

Question 3.
Semantic memory and Episodic memory
Answer:

• Semantic memory is a more structured record of facts, meanings, concepts, and knowledge. On the other hand, episodic memory is a memory of experiences and specific events which we recall step by step to reconstruct the actual events.
• Semantic memories have personal context which includes vocabulary, mathematics, rules of logic while episodic memory is the memory of autobiographical events with times, places, and associated emotions.

Question 4.
Storage failure and Retrieval failure
Answer:

• In case of storage, failure acquired and encoded information is not stored properly while in case of retrieval failure, problems arise while recalling the stored information for its actual use.
• Both storage failure and retrieval failure make it difficult to use the retained information in the future.

Question 5.
Recall method and Recognition method
Answer:

• The recall method involves remembering a fact, event, or object that is not currently physically present and requires the direct uncovering of information from memory, (e.g. long essay-type answers). In the recognition method, already learned material is present and the learner has to recognize it. (e.g. MCQs).
• Recognition is relatively easier than recall. So, a score of memory by recognition method is usually more than the recall method.

4. What will you do if…

Question 1.
You have to prepare a long speech covering all the activities in your college and present at the annual function
Answer:

• I will make a list of all the activities and rehearse it a number of times so as to ensure better retention.
• I may also make a note with all points in brief which I can refer to if I forget something in the middle of a speech.

Question 2.
How will you apply ‘POWER’ to prepare for the final exam of Psychology?
Answer:

• Prepare: Before starting to study, I would prepare myself for it by setting goals. I will make myself aware of why am I studying Psychology, e.g. for acquiring good marks in the final exam.
• Organize: I will organize the study material properly and make a schedule for each chapter. I will allot less time for chapters that are easy and familiar. I may study these chapters when I am a bit tired. Conversely, I will allot more hours to chapters that are unfamiliar, complicated, or technical. I will also ensure to study these complex chapters when I am fresh.
• Work: I know that I have to work hard to achieve the goal of acquiring good marks. So, I will learn with the motive to understand and remember. I will try to associate new information with something that I have already learned.
• Evaluate: I will try to evaluate my progress by solving practice papers. It will enable me to know how much I have learned and the quality of my knowledge.
• Rethink: I will reanalyze, review, question, and challenge myself. I will also rethink whether I need to change my method of studying so as to achieve the goal of acquiring good marks in the final exam.

5. Short Notes.

Question 1.
Characteristics of Memory
Answer:

• Memory is an ability by which information is encoded, stored, and retrieved when needed.
• Three basic processes or characteristics of memory are Acquisition, Storage, and Retrieval.
• The acquisition is the process of acquiring information from our sense organs. The information acquired and encoded is stored over a period of time. In retrieval, the stored information is recalled for the purpose of its actual use.
• There are three stages of memory, viz. Sensory information store, short-term memory, and long-term memory.

Question 2.
Techniques to improve memory
Answer:
Some techniques to improve memory are as follows:

• Keyword method: In the keyword method, any two different pieces of information can be linked together. It is an effective method for remembering definitions and learning foreign language vocabulary.
• Encoding specificity: According to encoding specificity, memory is improved when information is available while learning is also available at the time to recall.
• Method of loci: It involves creating an imaginary route so that things can be remembered in a better way. e.g. steps to solve mathematical problems.
• Mnemonic devices: Mnemonics will include acronyms or first letter techniques (e.g. VIBGYOR includes colours of the rainbow). It will also include visualization. Another technique is chunking where one can place large information into small chunks.
• Practice and rehearsal: Relearning the same material a number of times lead to better retention and better recall. For small size or easy material, it is effective to optimally utilize our time and learn the entire material. For large size or difficult material, we must take breaks and learn the material in parts.
• Minimizing interference: We should not learn similar subjects together as they might interfere with each other. Also, one must take a rest for minimising such interference.
• POWER method: One can also use the POWER method for improving memory. Here, P stands for Preparation, 0 stands for Organisation, W stands for Work, E stands for Evaluation and R stands for Rethinking.

Question 3.
Motivated forgetting
Answer:

• Motivated forgetting is a behaviour in which people may forget unwanted memories either consciously or unconsciously.
• It is also called a conscious coping strategy but it should not be confused with defense mechanisms.
• There are two levels of motivated forgetting, viz. Repression and Thought suppression.
• Repression: Sigmund Freud’s Psychoanalytic model states that we subconsciously push unwanted thoughts and memories into our unconsciousness. People think that such repressed memories are completely forgotten.
• e.g. a girl who had experienced sexual abuse during childhood may completely forget about it. But she may have difficulty while forming a romantic relationship.
• Thought suppression: It is a conscious effort where we forget the memories of unwanted incidents and experiences of our lives, e.g. a person will avoid talking about his breakup.
• Thought suppression can be time-consuming and also quite difficult as such suppressed thoughts tend to reoccur, e.g. a person may try to suppress the thoughts about his ex but he may not be successful in doing so.

Question 4.
Causes of forgetting
Answer:

• Trace decay: Our memories fade out when we don’t use them for a longer period, i.e., traces of memory get decayed over time if they are not used.
• Trace distortion: Some researchers believe that memory traces are not decayed but are distorted over a period of time and forgetting occurs.
• Interference: Some researchers believe that we forget when materials that we learn one after the other interfere with each other. There are two types of interference, viz. retroactive interference and proactive interference.
• Motivated forgetting: It is a behaviour in which people may forget unwanted memories either consciously or unconsciously. There are two levels of motivated forgetting, viz. Repression and Thought suppression.

6. Answer the following questions in 150-200 words.

Question 1.
Explain the process of human memory in detail.
Answer:

• Memory is an ability by which information is encoded, stored, and retrieved when needed.
• The basic processes of memory include acquisition (encoding), storage, and retrieval.
  
• Acquisition/Encoding: Acquisition is the process of acquiring information from sense organs. Encoding is the process of transforming the information received into suitable symbols like pictures, figures, words, numbers.
• Storage: The information acquired and encoded is preserved over a period of time. The process of storage is essential for using that information in the future.
• Retrieval: It is the process of recalling the stored information for the purpose of its actual use. We tend to retrieve mobile numbers, names, etc. in our daily life.
• We can think of these processes as analogous to the functions of a computer.

Question 2.
Explain the theories of forgetting in detail.
Answer:

• Forgetting is the failure to retrieve the material from our long-term memory which we had already stored.
• Researchers have put forward various theories of forgetting. Each theory highlights different reasons behind forgetting.
• The various theories of forgetting are: Trace decay theory, Trace distortion theory, and Interference theory.
  • Trace decay: Our memories fade out when we don’t use them for a longer period, i.e., traces of memory get decayed over time if they are not used.
  • Trace distortion: Some researchers believe that memory traces are not decayed but are distorted over a period of time and forgetting occurs.
  • Interference: Some researchers believe that we forget when materials that we learn one after the other interfere with each other. There are two types of interference, viz. retroactive interference and proactive interference.

7. Arrange the following elements in concepts of memory in ascending order.

Question 1.
Elaborative rehearsal, Short Term Memory, Receiving information from the environment, Long Term Memory, Retrieval
Answer:

• Receiving information from the environment
• Short Term Memory
• Elaborative rehearsal
• Long Term Memory
• Retrieval

Activities

Activity 1 (Textbook Page No. 87)

Do you remember your first picnic at your school? Do you remember your primary school teacher? Now can you remember what food you ate last Monday? Why you can remember some incidents from the past clearly while you cannot remember some things which happened yesterday?
Answer:
We remember some incidents from the past clearly when they are a part of our long-term memory. Similarly, we cannot remember certain incidents from the recent past whey they form a part of our sensory or short-term memory.

Activity 2 (Textbook Page No. 87)

Why does this happen? 25 workers used to work in Thomas Edison’s Bulb and Phonogram unit of industries. There was a huge tree near his company. After 6 months, Edison asked his workers about the huge tree but not a single worker could give information about that tree. Why do you think this happened despite seeing the tree every day?
Answer:
I feel the none of the workers could give information about the tree near their company since it was a part of their sensory memory, i.e., they perceived the stimulus (tree) with sense organs but did not rehearse it enough for it to become a part of their long term memory.