NTSE - SAT-2015

TIME LEFT -

Question 1
1 / -0

A segment of DNA contains 1200 nucleotides, of which 200 have adenine bases. How many cytosine bases are present in this segment of DNA?

A
100

B
200

C
400

D
800

Question 2
1 / -0

You are observing a non-chlorophyllous, eukaryotic organism with chitinous cell wall under a microscope. You shall describe the organism as a

A
fungus

B
alga

C
protozoan

D
bacterium

Question 3

1 / -0

Match the items given in Column A and Column B, and identify the correct alternative from the ones listed below.

Column A	Column B
(a) Flying fish	(i) Draco
(b) Flying lizard	(ii) Echidna
(c) Egg laying mammal	(iii) Exocoetus
(d) Flightless bird	(iv) Struthio

(a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)

(a) - (iii), (b) - (i), (c) - (ii), (d) - (iv)

(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)

(a) - (i), (b) - (iii), (c) - (iv), (d) - (ii)

Question 4
1 / -0

Which one of the following statements about cell organelle and their functions is correct?

A
Mitochondria are associated with anaerobic respiration.

B
Smooth endoplasmic reticulum is involved in protein synthesis.

C
Lysosomes are important in membrane biogenesis.

D
Golgi bodies are involved in packaging and dispatching of materials.

Question 5
1 / -0

A leguminous plant grown in an autoclaved, sterilized soil fails to produce root nodules because

A
autoclaved soil is not good for root growth

B
autoclaved soil is devoid of bacteria

C
autoclaving reduces N₂ content of soil

D
plants cannot form root hair in such a soil

Question 6
1 / -0

The causative agent of the sleeping sickness in human beings is an

A
intracellular parasite found in RBC

B
extracellular parasite found in blood plasma

C
intracellular parasite found in WBC

D
extracellular parasite found on the surface of platelets

Question 7
1 / -0

Abundance of coliform bacteria in a water body is indicative of pollution from

A
petroleum refinery

B
metal smelter

C
fertilizer factory

D
domestic sewage

Question 8
1 / -0

Prolonged exposure to the fumes released by incomplete combustion of coal may cause death of a human because of

A
inhalation of unburnt carbon particles

B
continuous exposure to high temperature

C
increased level of carbon monoxide

D
increased level of carbon dioxide

Question 9
1 / -0

The phenomenon of normal breathing in a human being comprises

A
an active inspiratory phase and a passive expiratory phase

B
a passive inspiratory phase and an active expiratory phase

C
both active inspiratory and expiratory phases

D
both passive inspiratory and expiratory phases

Question 10
1 / -0

Which one of the following statements is true with respect to photosynthesis?

A
Oxygen evolved during photosynthesis comes from CO₂.

B
Chlorophyll is the only photosynthetic pigment in plants.

C
Photosynthesis occurs in the stem of some plants.

D
Photosynthesis does not occur in red light.

Question 11
1 / -0

The girth of stem increases due to the activity of

A
lateral meristem

B
apical meristem

C
intercalary meristem

D
apical and intercalary meristem

Question 12
1 / -0

Which one of the following represents the correct sequence of events in a reflex action?

A
Receptor → sensory nerve → motor nerve → spinal cord → muscle

B
Receptor → motor nerve → spinal cord → sensory nerve → muscle

C
Receptor → sensory nerve → spinal cord → muscle → motor nerve

D
Receptor → sensory nerve → spinal cord → motor nerve → muscle

Question 13
1 / -0

In human females, the immature eggs are for the first time seen in the ovaries

A
at puberty

B
before birth, at the foetus stage

C
during the first menstrual cycle

D
after the first year of birth

Question 14
1 / -0

What happens when a fixed amount of oxygen gas is taken in a cylinder and compressed at a constant temperature?

(a) The number of collisions of the oxygen molecules per unit area of the wall of the cylinder increases.
(b) Oxygen (O₂) gets converted into ozone (O₃).
(c) Kinetic energy of the molecules of oxygen gas increases.

A
(a) and (c)

B
(b) and (c)

C
(c) only

D
(a) only

Question 15
1 / -0

What mass of CO₂ will be formed when 6 g of carbon is burnt in 32 g of oxygen?

A
38 g

B
12 g

C
26 g

D
22 g

Question 16
1 / -0

The law of conservation of mass is valid for which of the following?

(a) Reactions involving oxidation
(b) Nuclear reactions
(c) Endothermic reactions

A
(a) and (c)

B
(a) and (b)

C
(b) and (c)

D
(b) only

Question 17
1 / -0

How many sub-atomic particles are present in an α-particle used in Rutherford's alpha scattering experiment? Choose the correct set from the table given below.

- No. of Protons No. of Neutrons No. of Electrons

1. 4 0 0

2. 2 0 2

3. 2 2 0

4. 2 2 1

A
1

B
2

C
3

D
4

Question 18
1 / -0

A metal occurs in nature as its ore X which on heating in air converts to Y. Y reacts with unreacted X to give the metal. The metal is

A
Hg

B
Cu

C
Zn

D
Fe

Question 19
1 / -0

Assertion (A): Nitrate ores are rarely available.
Reason (R): Bond dissociation energy of nitrogen is very high.

A
Both (A) and (R) are true and (R) is the correct explanation of (A).

B
Both (A) and (R) are correct but (R) is not the correct explanation of (A).

C
(A) is correct and (R) is false.

D
Both (A) and (R) are false.

Question 20
1 / -0

Consider the following as a portion of the periodic table from Groups No. 13 to 17. Which of the following statements are true about the elements shown in it?

I. V, W, Y and Z are less electropositive than X.
II. V, W, X and Y are more electronegative than Z.
III. Atomic size of Y is greater than that of W.
IV. Atomic size of W is smaller than that of X.

V Z

W Y

X

A
I, II and III

B
II and III

C
I and IV

D
III and IV

Question 21
1 / -0

A small spherical ball of mass 'm' is used as the bob of a pendulum. The work done by the force of tension on its displacement is W₁. The same ball is made to roll on a frictionless table. The work done by the force of normal reaction is W₂. Again the same ball is given a positive charge 'g' and made to travel with a velocity v in a magnetic field B. The work done by the force experienced by the charged ball is W₃. If the displacements in each case are the same, we have

A
W₁ < W₂ < W₃

B
W₁ > W₂ > W₃

C
W₁ = W₂ = W₃

D
that W₁, W₂ and W₃ cannot be related by any equation

Question 22
1 / -0

The disc of a siren containing 60 holes rotates at a constant speed of 360 rotations per minute. The emitted sound is in unison with a tuning fork of frequency

A
270 Hz

B
360 Hz

C
480 Hz

D
540 Hz

Question 23
1 / -0

A tuning fork is excited by striking it with a padded hammer. What would be the nature of the vibrations executed by the prongs as well as the stem of the fork? (The reference direction is that of the propagation of the sound wave.)

A
Both vibrate longitudinally.

B
Both vibrate transversely.

C
The prongs vibrate transversely whereas the stem vibrates longitudinally.

D
The prongs vibrate longitudinally whereas the stem vibrates transversely.

Question 24
1 / -0

Which of the following can produce a magnetic field?

A
Electric charges at rest

B
Electric charges in motion

C
Permanent magnets

D
Electric charges whether at rest or in motion

Question 25

1 / -0

Match the following:

Phenomenon

Reason

(i)	Rainbow	A.	Scattering of light
(ii)	Twinkling of stars	B.	Dispersion of light
(iii)	Blue colour of sky	C.	Fluctuation of the refractive index in atmospheric layers
(iv)	Advancement of sunrise and delay of sunset	D.	Refraction of light

(i) - B, (ii) - D, (iii) - A, (iv) - C

(i) - B, (ii) - C, (iii) - A, (iv) - D

(i) - B, (ii) - A, (iii) - C, (iv) - D

(i) - D, (ii) - B, (iii) - A, (iv) - C

Question 26
1 / -0

A person is suffering from both near sightedness and far sightedness. His spectacles would be made of

A
a concave lens as the upper lens and a convex lens as the lower lens

B
two concave lenses with the upper lens having a smaller focal length than the lower lens

C
two convex lenses with the upper one having a longer focal length than the lower one

D
a convex lens as the upper lens and a concave lens as the lower lens

Question 27
1 / -0

LCM of two numbers x and y is 720 and the LCM of numbers 12x and 5y is also 720. The number y is

A
8

B
144

C
120

D
48

Question 28
1 / -0

x and y are two non-negative numbers such that 2x + y = 10. The sum of the maximum and minimum values of (x + y) is

A
6

B
9

C
10

D
15

Question 29
1 / -0

Three-digit numbers formed by using digits 0, 1, 2 and 5 (without repetition) are written on different slips, with a distinct number on each slip, and put in a bowl. One slip is drawn at random from the bowl. The probability that the slip bears a number divisible by 5 is

A
5/9

B
4/9

C
2/3

D
1/3

Question 30
1 / -0

Assertion (A): During the eighteenth century, France witnessed the emergence of a middle class.
Reason (R): The emergence of the middle class happened on account of royal patronage.

A
(A) is true, (R) is false.

B
(A) is false, (R) is true.

C
Both (A) and (R) are true but (R) is not the correct explanation of (A).

D
Both (A) and (R) are true and (R) is the correct explanation of (A).

Question 31
1 / -0

Assertion (A): The lives of pastoralists in India underwent dramatic changes under colonial rule.
Reason (R): In most areas, the lands regularly used by pastoralists for grazing were taken over by the colonial state and given to select individuals for cultivation.

A
(A) is true, (R) is false.

B
(A) is false, (R) is true.

C
Both (A) and (R) are true but (R) is not the correct explanation of (A).

D
Both (A) and (R) are true and (R) is the correct explanation of (A).

Question 32
1 / -0

Assertion (A): By the early twentieth century, America became the biggest supplier of wheat to Europe.
Reason (R): The expansion of the railways during the period greatly facilitated the transport of grain.

A
(A) is true, (R) is false.

B
(A) is false, (R) is true.

C
Both (A) and (R) are true but (R) is not the correct explanation of (A).

D
Both (A) and (R) are true and (R) is the correct explanation of (A).

Question 33

1 / -0

Match the following columns and choose the correct response from the options given thereafter.

Column - I	Column - II
A. 1910	I. Establishment of Tonkin Free School
B. 1930	II. Formation of French Indo- China
C. 1907	III. Completion of the trans-indo- China rail network
D. 1887	IV. Formation of the Vietnamese Communist Party

A - Ill, B - IV, C - I, D - Il

A - IV, B - Ill, C - Il, D - l

A - lIl, B - I, C - IV, D - ll

A - IV, B - I, C - Il, D - lll

Question 34
1 / -0

Arrange the following Indian novels in accordance with their year of writing/publication:

a. Indulekha
b. Rajasekhara Charitramu
c. Yamuna Paryatan
d. Pariksha-Guru

A
c, b, d, a

B
a, d, b, c

C
c, d, b, a

D
a, b, d, c

Question 35
1 / -0

The main tenets of April Theses during the Bolshevik Revolution were

A
closing the war, shifting of banks, land pooling by government

B
formation of labour government, bank nationalisation and land distribution

C
communist government, land fragmentation and merger of banks

D
ending the war, bank nationalisation and land transfer

Question 36
1 / -0

Mahatma Gandhi changed his dressing style from Western to Indian over a period of time. Match those changes as given in Column-I and Column-II and choose the correct response from the options given thereafter.

Column-I Column-II

A. Suit I. 1915

B. Lungi-Kurta II. 1890

C. Peasant Dress III. 1921

D. Short Dhoti IV. 1913

A
A - Il, B - IV, C - I, D - Ill

B
A - Il, B - I, C - lV, D - III

C
A - Ill, B - IV, C - I, D - II

D
A - IV, B - Ill, C - I, D - ll

Question 37
1 / -0

In late 19^th and early 20^th centuries, nationalism captured the imagination of the Indian people through a variety of cultural processes. Which of the following was not a part of those processes?

A
Rewriting history to show India's continuous progress from the ancient to the modem times

B
Creation of different images of Bharat Mata

C
Recording, collection and publication of folk tales and folk songs

D
Designing flags as inspiring symbols of nationalism

Question 38
1 / -0

Choose the correct response from the given options.

Nomadic people move over long distances because

A
by temperament, they do not like to settle down in any one place

B
they constantly look for good pasture land for their cattle

C
they follow a lifestyle which is very different from the settled communities

D
economically, they are too poor to own land

Question 39
1 / -0

Choose the correct response from the given options.

In 19^th century England, grain production grew as quickly as the population because

A
farmers used simple agricultural technology to greater effect

B
radical innovations were made in agricultural technology

C
larger and larger areas were brought under cultivation

D
increasing number of poor people found work as agricultural labourers

Question 40
1 / -0

Choose the correct response from the given options.

By the late 19^th century, Indians began searching for a national dress because they wanted to

A
show that in terms of dress they were not inferior to the British

B
get rid of the blame of blindly aping the West

C
define the cultural identity of the nation

D
culturally synthesize the traditions of the East and the West

Question 41
1 / -0

Choose the correct response from the given options.

The unification of Germany in 1871, for a change, demonstrated

A
the triumph of the democratic aspirations of the German middle-class

B
the fulfilment of the liberal initiative nation-building

C
the power of the common people, das volk

D
the dominance of the state power and conservatives' success in mobilizing nationalist sentiments

Question 42
1 / -0

Choose the correct response from the given options.

The formation of the 'United Kingdom of Great Britain' in 1707 meant, in effect,

A
equal representation of all the British Isles in the British Parliament

B
recognition to the ethnic identities of the Welsh, the Scot and the Irish

C
the cessation of conflicts between the Catholics and the Protestants

D
the dominance of England on Scotland through the English supremacy in Parliament

Question 43
1 / -0

Choose the correct response from the given options.

Many within the Congress were initially opposed to the idea of non-cooperation because

A
they did not think that British rule in India would collapse if Indians refused to cooperate

B
they were not yet sure of Gandhiji's ability to successfully lead a nationwide movement

C
they were reluctant to boycott the council election scheduled for November 1920

D
they did not agree with Gandhiji's proposal to carry the movement forward in stages

Question 44
1 / -0

Choose the correct response from the given options.

The main reason why the Society of Revolutionary and Republican Women was set up during the French Revolution was because

A
women wanted laws that would help improve their lives

B
women wanted the same political rights as men

C
women wanted their interests to be properly represented in the new government

D
women wanted access to education, training for jobs, and wages on par with men

Question 45
1 / -0

Assertion (A): The El Nino, a cold ocean current, flows along the coast of Peru during Christmas.
Reason (R): The presence of the El Nino leads to an increase in sea-surface temperatures and weakening of the trade winds in the region.

A
Both (A) and (R) are true and (R) explains (A).

B
Both (A) and (R) are true but (R) does not explain (A).

C
(A) is true and (R) is false.

D
(A) is false and (R) is true.

Question 46
1 / -0

Assertion (A): Air temperature decreases from the equator towards the poles.
Reason (R): As one moves from the sea level to higher altitudes, the atmosphere becomes less dense and temperature decreases.

A
Both (A) and (R) are true and (R) explains (A).

B
Both (A) and (R) are true but (R) does not explain (A).

C
(A) is true and (R) is false.

D
(A) is false and (R) is true.

Question 47

1 / -0

Match List - I (Local name of shifting cultivation) with List - Il (State/Region) and select the correct answer using the codes given below:

List - I (Local name of shifting cultivation)	List - II (State/Region)
A. Dahiya	I. Jharkhand
B. Kumari	II. Madhya Pradesh
C. Bringa	III. Odisha
D. Kuruwa	IV. Western Ghats

A - III, B - IV, C - II, D - I

A - II, B - IV, C - III, D - I

A - I, B - III, C - IV, D - II

A - I, B - IV, C - III, D - II

Question 48
1 / -0

Assertion (A): Most nuclear power stations in India have been constructed near sources of water.
Reason (R): Nuclear power stations require a great quantity of water for cooling purposes.

A
Both (A) and (R) are true and (R) explains (A).

B
Both (A) and (R) are true but (R) does not explain (A).

C
(A) is true and (R) is false.

D
(A) is false and (R) is true.

Question 49
1 / -0

Assertion (A): Peninsular rocks contain many reserves of coal, metallic minerals, mica and many other non-metallic minerals.
Reason (R): Sedimentary rocks on the western and eastern flanks of the peninsula, Gujarat and Assam have most of the ferrous minerals.

A
Both (A) and (R) are true and (R) explains (A).

B
Both (A) and (R) are true but (R) does not explain (A).

C
(A) is true and (R) is false.

D
(A) is false and (R) is true.

Question 50
1 / -0

Which one of the following states has common borders with the least number of countries?

A
Uttarakhand

B
West Bengal

C
Arunachal Pradesh

D
Sikkim

Question 51

1 / -0

Match List-I (Rivers) with List-li (National Waterways) and select the correct answer using the codes given below:

List-I
(Rivers)

List-II
(National Waterways)

A.	Ganga	I.	National Waterway No. 4
B.	Brahmaputra	II.	National Waterway No. 1
C.	Godavari and Krishna	III.	National Waterway No. 5
D.	Mahanadi and Brahmani	IV.	National Waterway No. 2

A - I, B - Il, C - Ill, D - IV

A - Il, B - III, C - IV, D - l

A - IV, B - III, C - Il, D - l

A - lI, B - IV, C - I, D - lII

Question 52

1 / -0

Match List-I (Rivers) with List-Il (Tributaries) and select the correct answer using the codes given below:

	List-I (Rivers)		List-II (Tributaries)
A.	Godavari	I.	Lohit
B.	Ganga	II.	Koyana
C.	Krishna	III.	Wainganga
D.	Brahamputra	IV.	Son

A - Il, B - Ill, C - IV, D - I

A - Il, B - I, C - Ill, D - IV

A - Ill, B - IV, C - Il, D - I

A - I, B - Ill, C - IV, D - lI

Question 53
1 / -0

Arrange these hill ranges from North to South direction.

I. Zaskar Range
II. Shiwalik Range
Ill. Karakoram Range
IV. Ladakh Range

A
III, IV, I, II

B
III, I, IV, II

C
I, II, Ill, IV

D
IV, III, I, II

Question 54

1 / -0

Match List-I (Rivers) with List-Il (Origin) and select the correct answer using the codes given below:

	List-I (Rivers)		List-II (Origin)
A.	Godavari	I.	Varusanadu Hills
B.	Krishna	II.	Amarkantak Hills
C.	Narmada	III.	Nasik Hills
D.	Vaigai	IV.	Mahabaleshwar

A - IV, B - Ill, C - I, D - II

A - Ill, B - IV, C - Il, D - I

A - I, B - Il, C - IV, D - III

A - lI, B - I, C - Ill, D - IV

Question 55
1 / -0

Assertion (A): In India, most migrations have been from rural to urban areas.
Reason (R): The urban areas offer greater employment opportunities and better living conditions.

A
Both (A) and (R) are true and (R) explains (A).

B
Both (A) and (R) are true but (R) does not explain (A).

C
(A) is true and (R) is false.

D
(A) is false and (R) is true.

Question 56
1 / -0

Arrange these hills from west to east direction.

A. Khasi Hills
B. Garo Hills
C. Naga Hills
D. Jaintia Range

A
C, A, B, D

B
D, B, A, C

C
A, B, C, D

D
B, A, D, C

Question 57
1 / -0

Assertion (A): The Earth does not receive an equal amount of solar energy at all latitudes.
Reason (R): As one goes from low altitude to high altitude, temperature decreases because atmosphere becomes less dense.

A
Both (A) and (R) are true and (R) explains (A).

B
Both (A) and (R) are true but (R) does not explain (A).

C
(A) is true and (R) is false.

D
(A) is false and (R) is true.

Question 58

1 / -0

Match the vegetation zones in Column-I with the associated mean annual average temperature (in degree Celsius) in Column-II.

	Column-I		Column-II
A.	Tropical	I.	17^oC to 24^oC
B.	Sub-tropical	II.	Above 24^oC
C.	Temperate	III.	7^oC to 17^oC
D.	Alpine	IV.	Below 7^oC

A - Il, B - I, C - Ill, D - IV

A - Il, B - Ill, C - IV, D - l

A - Il, B - IV, C - Ill, D - l

A - IV, B - Il, C - Ill, D - I

Question 59
1 / -0

Which of the following statements is/are true about federal systems?

a. All federations have a similar scheme of distribution of powers.
b. The origins of different federations are dissimilar.
c. Federalism promotes unity at the cost of diversity.
d. Federalism promotes unity in diversity.

A
Only b

B
a and c

C
b and d

D
a, b and c

Question 60
1 / -0

I do not contest elections, but I try to influence the political process. I have a specific policy agenda. I have no interest in seeking political power. Who am I?

A
Bureaucracy

B
Court

C
Pressure group

D
Media

Question 61
1 / -0

Which of the following issues has been most successfully addressed by the Indian democracy?

A
Social inequality

B
Economic inequality

C
Political inequality

D
Natural inequality

Question 62

1 / -0

Match List I (Leaders) with List II (Political parties) and select the answer using the codes given below.

	List I		List II
I.	E.M.S. Namboodiripad	a.	Bahujan Samaj Party
II.	Sheikh Abdullah	b.	Telugu Desam
III.	N.T. Rama Rao	c.	Communist Party of India (Marxist)
IV.	Kanshi Ram	d.	Jammu & Kashmir National Conference

I - c, II - d, III - a, IV - b

I - b, II - d, III - c, IV - a

I - b, II - c, III - a, IV - d

I - c, II - d, III - b, IV - a

Question 63
1 / -0

Economic growth is growth in ____________.

A
value of total output

B
value of total investment

C
value of industrial output

D
value added of all sectors

Question 64
1 / -0

Mahatma Gandhi National Rural Employment Guarantee Act aims at providing

A
employment to rural people in government offices

B
200 days of work/year in rural areas

C
100 days of wage employment in a year to rural households

D
365 days of work in rural areas

Question 65
1 / -0

A landless worker in a village takes a kind loan of two bags of rice from the village landlord. The condition is that she will repay the loan in two and half bags of rice at the end of one year. The interest paid equals ________.

A
the difference between the money value of rice between now and at the end of the year

B
31.25 percent of the original amount of loan

C
25 percent of the original amount of loan

D
the difference between the rates of interest charged by banks between now and at the end of the year

Question 66
1 / -0

Non-market activity is ________.

A
a state of unemployment

B
producing for self consumption

C
selling the products near temples

D
selling the products through the regulated market

Question 67
1 / -0

A typical farmer's capital includes tractor, turbines, plough, seeds, fertilizers, pesticides and cash in hand. Which of these combinations can be classified as working capital?

A
Tractor, turbines and plough

B
Seeds, fertilizers, pesticides and cash in hand

C
Plough, seeds, fertilizers and pesticides

D
Plough, seeds, fertilizers, pesticides and cash in hand

Submit Test

User

Question Analysis

Answered - 0
Unanswered - 67

Submit Test

-	No. of Protons	No. of Neutrons	No. of Electrons
1.	4	0	0
2.	2	0	2
3.	2	2	0
4.	2	2	1

A.	Suit	I.	1915
B.	Lungi-Kurta	II.	1890
C.	Peasant Dress	III.	1921
D.	Short Dhoti	IV.	1913

NTSE - SAT-2015...

Question 1

100

200

400

800

Question 2

fungus

alga

protozoan

bacterium

Question 3

(a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)

(a) - (iii), (b) - (i), (c) - (ii), (d) - (iv)

(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)

(a) - (i), (b) - (iii), (c) - (iv), (d) - (ii)

Question 4

Mitochondria are associated with anaerobic respiration.

Smooth endoplasmic reticulum is involved in protein synthesis.

Lysosomes are important in membrane biogenesis.

Golgi bodies are involved in packaging and dispatching of materials.

Question 5

autoclaved soil is not good for root growth

autoclaved soil is devoid of bacteria

autoclaving reduces N2 content of soil

plants cannot form root hair in such a soil

Question 6

intracellular parasite found in RBC

extracellular parasite found in blood plasma

intracellular parasite found in WBC

extracellular parasite found on the surface of platelets

Question 7

petroleum refinery

metal smelter

fertilizer factory

domestic sewage

Question 8

inhalation of unburnt carbon particles

continuous exposure to high temperature

increased level of carbon monoxide

increased level of carbon dioxide

Question 9

an active inspiratory phase and a passive expiratory phase

a passive inspiratory phase and an active expiratory phase

both active inspiratory and expiratory phases

both passive inspiratory and expiratory phases

Question 10

Oxygen evolved during photosynthesis comes from CO2.

Chlorophyll is the only photosynthetic pigment in plants.

Photosynthesis occurs in the stem of some plants.

Photosynthesis does not occur in red light.

Question 11

lateral meristem

apical meristem

intercalary meristem

apical and intercalary meristem

Question 12

Receptor → sensory nerve → motor nerve → spinal cord → muscle

Receptor → motor nerve → spinal cord → sensory nerve → muscle

Receptor → sensory nerve → spinal cord → muscle → motor nerve

Receptor → sensory nerve → spinal cord → motor nerve → muscle

Question 13

at puberty

before birth, at the foetus stage

during the first menstrual cycle

after the first year of birth

Question 14

(a) and (c)

(b) and (c)

(c) only

(a) only

Question 15

38 g

12 g

26 g

22 g

Question 16

(a) and (c)

(a) and (b)

(b) and (c)

autoclaving reduces N₂ content of soil

Oxygen evolved during photosynthesis comes from CO₂.

W₁ < W₂ < W₃

W₁ > W₂ > W₃

W₁ = W₂ = W₃

that W₁, W₂ and W₃ cannot be related by any equation