NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 662 - 668 of 3513

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Question number: 662

» Cell Structure and Function » Chemical Constituents of Living Cells » Enzymes - Types, Properties, Enzyme Action

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MCQ▾

Question

To explain the mechanism of enzymatic action, who proposed “Lock and key hypothesis”?

Choices

Choice (4)Response

a.

Fischer

b.

Sumner

c.

Koshland

d.

Jacob

Question number: 663

» Plant Physiology » Transport in Plants » Phloem Transport

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MCQ▾

Question

Which theory explained the translocation of long interval?

Choices

Choice (4)Response

a.

Transcelier streaming

b.

Pressure flow

c.

Cyclosis

d.

Protoplasmic streaming

Question number: 664

» Reproduction » Reproduction in Organisms » Vegetative Propagation in Plants

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MCQ▾

Question

Which of the following propagates through leaf-tip?

Choices

Choice (4)Response

a.

Sprout-leaf plant

b.

Marchantia

c.

Walking fern

d.

Moss

Question number: 665

» Genetics and Evolution » Heredity and Variation » Chromosome Theory of Inheritance

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MCQ▾

Question

Albinism is

Choices

Choice (4)Response

a.

Non-hereditary character

b.

Sex-linked character

c.

Acquired character

d.

Hereditary character

Question number: 666

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

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MCQ▾

Question

Stomatal index (SI) is equal to

Choices

Choice (4)Response

a.

E + S

E

b.

E

E + S

c.

S

E + S

d.

S

E-S

Question number: 667

» Reproduction » Reproduction in Organisms » Asexual Reproduction

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MCQ▾

Question

Genetically identical progeny is produced when an individual

Choices

Choice (4)Response

a.

Produces identical gametes.

b.

Practices by breeding without meiosis.

c.

Practices self-fertilization

d.

Practices reproduction

Question number: 668

» Plant Physiology » Mineral Nutrients » Macro and Micronutrients

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MCQ▾

Question

Function of zinc is

Choices

Choice (4)Response

a.

Biosynthesis of 3 IAA

b.

Oxidation of carbohydrate.

c.

Closing of stomata

d.

Synthesis of chlorophyll

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