Scholastic Aptitude Test NTSE

I want the question paper of Scholastic Aptitude Test SAT exam of National Talent Search Examination of class X so can you provide me?

As you want the question paper of Scholastic Aptitude Test SAT exam of National Talent Search Examination of class X so here I am providing you.

NTSE Scholastic Aptitude Test SAT exam class X question paper

Time allowed : 45 Min.
Maximum Marks : 50

1. Which of the following statements in NOT true about evolution?
(a) Evolution leads to generation of diverse forms of life
(b) Time dating and fossil studies help in understanding of evolution
(c) Evolution is not always progressive series of changes that occur in organism
(d) Human beings have not evolved from chimpanzees

2. Which of the following is known as energy currency of cell?
(a) Adenosine diphosphate
(b) Adenosine triphosphate
(c) Pyruvate
(d) Glucose

3. An analysis of soil sample revealed 0.1 mg of a pesticide was found in grams. However in the adipose tissue of
birds the concentration was 2 mg. The reason for this is the phenomenon known as
(a) Bio-absorption
(b) Bio-translocation
(c) Bio-magnification
(d) Bio-multiplication

4. Diseases that spread by vectors such as mosquitoes are
(a) Encephalitis and Malaria
(b) Syphilis and AIDS
(c) Tuberculosis and sleeping sickness
(d) Kala-azar and SARS

5. Which one of the following is correct route for passage of sperms?
(a) Testes – scrotum – vasdeferens – urethra – penis
(b) Scrotum – testes – urethra – vasdeferens – penis
(c) Testes – vasdeferens – urethra – seminal vesicles
(d) Testes – vasdeferens – urethra – penis

6. Suggest which among the following is NOT a function attributed to endoplasmic reticulum
(a) Detoxification of poisons and drugs
(b) Digestion/egestion of foreign materials outside the cell
(c) Manufacture of fat and lipid molecules
(d) Biogenesis of membranes

7. In nitrogen cycle, atmospheric nitrogen is fixed by bacteria and converted into ammonia. Ammonia is further
converted into order forms of nitrogen. At the end of the cycle it returns to the it returns to the atmosphere
by the process of:
(a) Ammonification
(b) Nitrification
(c) Denitrification
(d) Assimilation


8. Cell organelles that are involved in the waste disposal system of the cell are :
(1) Golgi apparatus (2) Lysosomes (3) Chromosomes (4) Ribosomes
Ans. (2)
Sol. Lysosomes helps in disposal of waste material.
9. Sequence of events which occur in a reflex action are
(1) Receptor - motor neuron - CNS -sensory neuron - effector muscle
(2) Effector muscle - CNS - sensory nerve - sensory organ
(3) CNS - sensory neuron - motor neuron - effector muscle
(4) Receptor organ - sensory neuron -CNS - motor neuron - effector muscle
Ans. (4)
Sol. Correct sequence of reflex action is Receptor organ - sensory neuron -CNS - motor neuron - effector muscle
10. Movement of food in digestive tract is due to
(1) concentration gradient (2) secretions (3) peristalsis (4) villi
Ans. (3)
Sol. Peristalsis is sequential contraction and relaxation movement in muscles of wall of alimentary canal which helps
in passing of food forward in alimentary canal.
11. A pea plant with round green (RRyy) pea seed is crossed another pea plant with wrinkled yellow (rrYY) seeds
What would be the nature of seed in the first generation (Fi
generation)?
(1)Round green (2) Wrinkled green (3) Wrinkled yellow (4) Round yellow
Ans. (4)
Sol.
RRyy rrYY
Ry rY
RrYy (All plants with round and yellow seed)
Parents
Gametes
F generation 1
Round
and green seed
Wrinkled
and Yellow seed
12. Some organisms are sensitive to different levels of air pollution and are used as pollution-indicators. Suggest
which among the following fits into the category
(1) Fungi (2) Fresh water algae (3) Bacteria (4) Lichens
Ans. (4)
Sol. Lichens are sensitive to air pollution (SO2
) and hence act as indicator of pollution.
13. A group of laboratory mice having tails are bred together and their progeny studied. The progeny had tails.
However, scientist surgically removed the tails of the progeny and again bred them for four successive generations.
What do you think would be the nature of the new progeny?
(1)All mice born will have tails.
(2) All mice born will have no tails.
(3) The ratio of tail less to tailed mice will be 1 :3
(4) The ratio of tail less to tailed mice will be l :4
Ans. (1)
Sol. Somatic variations are not inherited to next generation.
14. Which of the following statements is NOT correct?
(1) Tendons are tissues with great strength and flexibility
(2) Bones are connected to each other by tendons
(3) Cartilage smoothens bone surface at joints
(4) Tendons connect muscles to bones
Ans. (2)
Sol. Bones are connected to each other by ligament where as tendons are strong tissues which connect bone to
muscle

15. Which of the following are the correct examples of matter?
(1) Glass bottle, water and noise (2) Air, wood and vacuum
(3) Silver foil, hot air and chalk (4) Sand, oxygen and light flash
Ans. (3)
Sol. Noise, vaccume and light flash are not the examples of matter.
16. Two identical beakers labeled as (X) and (Y) contain 100 cm3
of water each at 20°C. To the water in the beaker
(X) 100 g of water at 0°C was added and stirred to mix thorougly. To the beaker (Y) 100 g of ice at 0°C was
added and stirred till it melted into water. The water in the beaker (Y) will be
(1) hotter than water in beaker X (2) colder than water in beaker X
(3) heavier than water in beaker X (4) lighter than water in beaker X
Ans. (2)


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