Biology (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 68 - 74 of 136

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Question number: 68

» Biology » Human Body

MCQ▾

Question

Human stomach produces acid ‘X’ which helps in digestion of food. Acid ‘X’ is

Choices

Choice (4) Response

a.

citric acid

b.

mechanic acid

c.

hydrochloric acid

d.

acetic acid

Question number: 69

» Biology » Soil

MCQ▾

Question

Certain bacteria living in the soil poor in oxygen convert nitrates into nitrites and then to free nitrogen and such bacteria are termed as

Choices

Choice (4) Response

a.

denitrifying bacteria

b.

nitrogen fixing bacteria

c.

saprophytic bacteria

d.

ammonifying bacteria

Question number: 70

» Biology » Plant and Animal Nutrition

MCQ▾

Question

Wood is a common name of

Choices

Choice (4) Response

a.

vascular bundles

b.

phloem

c.

secondary xylem

d.

cambium

Question number: 71

» Biology » Food Production & Management

MCQ▾

Question

Yeast is used in the production of

Choices

Choice (4) Response

a.

beer

b.

citric acid and lactic acid

c.

cheese and butter

d.

All of the above

Question number: 72

» Biology » Our Environment

MCQ▾

Question

The life supporting gases such as O 2, CO 2 and N 2 are primarily concentrated in

Choices

Choice (4) Response

a.

homosphere

b.

exosphere

c.

troposphere

d.

stratosphere

Question number: 73

» Biology » Water

MCQ▾

Question

When a marine fish is placed in fresh water, it dies because

Choices

Choice (4) Response

a.

exit of water and shrinks

b.

deficiency of salts

c.

deficiency of nutrients

d.

entry of water

Question number: 74

» Biology » Plant and Animal Nutrition

MCQ▾

Question

Cellulose is a strong substance found in all plant cells. Which part of a plant cell contains cellulose?

Choices

Choice (4) Response

a.

The cell membrane

b.

The chloroplasts

c.

The vacuoles

d.

The cell wall

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