BIOLOGY | Study Mode

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Question 1

One of the functions of xylem

A

strengthening the stem

B

manufacturing food

C

conducting manufactured food

D

none of the above.

Explanation

Share Answer Xylem contains several large thick-walled tubes called in which the soil solution is carried from the roots to the leaves (C).

Correct option: C

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Question 2

People suffering form myopia

A

can see near objects clearly

B

can see far away objects clearly

C

cannot see any object clearly

D

are colour-blind

Explanation

Share Answer Myopia is short-sightedness i.e. can only see near object clearly (A)

Correct option: A

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Question 3

The cilia in paramecium are used for

A

respiration

B

locomotion

C

protection

D

excretion

Explanation

Share Answer Cilia is common to protozoa like paramecium, it is used for movement (locomotion) (B).

Correct option: B

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Question 4

Which of these types of skeleton is most appropriate to the cockroach?

A

hydrostatic skeleton

B

exoskeleton

C

endoskeleton

D

cartilaginous skeleton

Explanation

Share Answer Exoskeleton is common to arthropod like cockroach (B).

Correct option: B

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Question 5

When proteins are broken down they provide

A

oxygen

B

carbohydrate

C

energy

D

amino acids

Explanation

Share Answer Protein is built from units of amino acid. Amino acid is the product of protein digestion (D).

Correct option: D

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Question 6

The function of lenticel is

A

to receive excess water in the plant

B

to absorb water from the atmosphere

C

for gaseous exchange

D

to absorb light

Explanation

Share Answer Lenticels is the organ for gaseous exchange in the stem of plant (C).

Correct option: C

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Question 7

Which of the following is characteristic of the animal cell

A

presence of chioroplasts

B

possession of a cellulose cell wall

C

absence of large vacuoles

D

presence of large vacuoles

Explanation

Share Answer The vacuole in animal cell is smaller when compared to that of plant cell (C).

Correct option: C

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Question 8

In the life history of Schistosoma (Bilharzia), of the following is the intermediate host

A

man

B

snail

C

mosquito larva

D

fish

Explanation

Share Answer Snail is the secondary host of bilharzias (B)

Correct option: B

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Question 9

The hormone which tones up the muscles of a person in the time of danger is from the

A

thyroid gland

B

pancreas

C

adrenal gland

D

spleen

Explanation

Share Answer The adrenal glands near the kidneys produce neutral hormones, one of which is adrenalin. Adrenal glands are stimulated by the nervous system when an animal feel frightened or anxious (C).

Correct option: C

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Question 10

The study of the organisms and the environment of an abandoned farmland is the ecology of

A

a community

B

a population

C

a species

D

an ecosystem

Explanation

Share Answer The collection of population makes up a community. (A)

Correct option: A

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