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NTSE SAT Exam

Time allowed : (90 Minutes) Maximum Marks : 100

Questions

1. Ananimal cell, a plant cell and a bacterium share the following structural features :
(1) Cell membrane, endoplasmic reticulum, vacuoles
(2) Cell wall, plasma membrane, mitochondria
(3) Cell wall, nucleus, cytoplasm
(4) Plasma membrane, cytoplasm, ribosomes
Ans. (4)
Sol. Animal cell, plant cell and bacterium cell have plasma membrane, cytoplasm and ribosomes as common part.

2. Given below are figures of three kinds of muscle fibres.
Which one/ones would you find in the grass hopper’s legs ?
(1) A only (2) B only (3) A and C (4) B and C
Ans. (2)

3. A plant that has well differentiated body, special tissues for transport of water and other substances, but does not have seed or fruits is a(n):
(1) Bryophyte (2) Angiosperm (3) Gymnosperm (4) Pteridophyte
Ans. (4)

4. Raju was suffering from severe stomach pain and the doctor diagnosed that he was suffering from pepticulcers and treated him with antibiotics. He was relieved of pain. What could be the reason for peptic ulcers
?(1)Reduced secretion of hormones. (2)Reduced water content.
(3) Growth of Helicobacter pylori. (4)Excess secretion of enzyme.
Ans. (3)

5. The average temperature of the Earth remains fairly steady as compared to that of the moon because of the
(1) atmosphere (2)lithosphere (3) biosphere. (4)hydrosphere.
Ans. (1)

Sol. Thereis no atmosphere on moon so temperature is variable.
6. In flowers, which one of the following conditions will increase chances of self-pollination?
(1)Pistil is longer than stamens in a flower
(2) Stamens are just above the stigma of a pistil in a flower.
(3)In all flowers of the plant only pistil is present.
(4)In all flowers of the plant only stamens are present.

8. A person with blood group ‘A’ can donate blood to the persons with blood group ‘A’ or ‘AB’ because it
(1) hasboth ‘A’ and ‘B’ antigens. (2) has only ‘A’ antigen and ‘B’ antibodies.
(3) has only ‘B’ antigen and ‘A’ antibodies (4) does not have any antigens and antibodies.
Ans. (2)


9. What would happen to the person if cerebellum of his brain is damaged?
(1)He will lose his memory power.
(2)He will not be able to swallow food properly.
(3) He will be unable to coordinate and stand properly.
(4)He will lose his powers of vision and hearing.
Ans. (3)

10. Which of the following statements are correct?
A. Tapeworms are hermaphrodites and undergo self-fertilization.
B. Earthworms are hermaphrodites and undergo self-fertilization.
C. Tapeworms are hermaphrodites but undergo cross-fertilization.
D. Earthworms are hermaphrodites but undergo cross-fertilization
1. A and B 2. B and C 3. C and D 4. D and A
Ans. (4)

11-12 A group of redbeetles lives on green leaves of a tree. BeetIes multiply through sexual reproduction. One
day, some green beetles are seen among the red beetles. Green beetles breed to produce green progeny.
Crows on the tree eat beetles.

11. Some green beetles appear among the red beetle because
(1) beetles become green by accumulating chlorophyll from the green leaves that they eat.
(2) natural variations occur during sexual reproduction.
(3) red beetles mimic green colour of leaves whenever they see crows.
(4) beetles change colour from red to green with change of season.
Ans. (2)

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NTSE SAT Exam Question Paper

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