NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 430 - 435 of 3511

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Question number: 430

» Ecology and Environment » Ecosystem » Patterns, Components

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MCQ▾

Question

In an ecosystem, the population of

Choices

Choice (4) Response

a.

Primary consumers are least dependent upon primary producers.

b.

Secondary consumers are largest because they are powerful.

c.

Primary consumers out number primary producers.

d.

Primary producers are more than that of primary consumers.

Question number: 431

» Plant Physiology » Transport in Plants » Transpiration-Opening and Closing of Stomata

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MCQ▾

Question

Which of the following factors is the most important in the regulation of transpiration?

Choices

Choice (4) Response

a.

Wind

b.

Humidity

c.

Temperature

d.

Light

Question number: 432

» Structural Organization in Animals and Plants » Plant Tissues - Morphology, Anatomy and Functions » Leaf

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MCQ▾

Question

Leaflets are called pinnules in

Choices

Choice (4) Response

a.

decompounds leaf

b.

twice pinnately compound leaf

c.

thrice pinnately compound leaf

d.

once pinnately compound leaf

Question number: 433

» Reproduction » Sexual Reproduction in Flowering Plants » Double Fertilization

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MCQ▾

Question

In angiosperms, free nuclear divisions occurs during

Choices

Choice (4) Response

a.

Flower formation

b.

Embryo formation

c.

Endosperm formation

d.

Gamete formation

Question number: 434

» Plant Physiology » Plant Growth and Development » Growth Regulators-Auxin, Gibberellin, Cytokinin, Ethylene, ABA

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MCQ▾

Question

Leaf fall occurs on abscission layer is formed when the content of

Choices

Choice (4) Response

a.

Auxin decreases

b.

Gibberellic acid decreases.

c.

Auxin increases

d.

Abscisic acid decreases

Question number: 435

» Plant Physiology » Photosynthesis » Photorespiration C3 and C4 Pathways

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MCQ▾

Question

When a molecule of pyruvic acid subjected to anaerobic oxidation and forms lactic acid, there is

Choices

Choice (4) Response

a.

Gain of 2 ATP molecules.

b.

Gain of 4 ATP molecules.

c.

Loss of 6 ATP molecules.

d.

Loss of 3 ATP molecules.