Plant Physiology (NEET Biology): Questions 103 - 108 of 257

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Question number: 103

» Plant Physiology » Transport in Plants » Water Potential

MCQ▾

Question

Most water absorption in plants takes place through

Choices

Choice (4) Response

a.

Root cap

b.

Root apex

c.

Root hair zone

d.

Meristematic zone

Question number: 104

» Plant Physiology » Transport in Plants » Absorption

MCQ▾

Question

Absorption of water by root is increased by

Choices

Choice (4) Response

a.

Increase in transpiration.

b.

Decrease in transpiration.

c.

Increase in the rate of photosynthesis.

d.

Decrease in salt uptake.

Question number: 105

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

MCQ▾

Question

A hypothetical chemical involved in the flowering of plants is OR Chemical agent which has important role in the flowering is

Choices

Choice (4) Response

a.

Florigen

b.

Indole acetic acid

c.

Gibberellin

d.

Kinetin

Question number: 106

» Plant Physiology » Plant Growth and Development » Photoperiodism

MCQ▾

Question

When the dark period of short day plants is interrupted by brief exposure of light, then the plant

Choices

Choice (4) Response

a.

Turn into a long day plant.

b.

Give more flowers.

c.

Will not flower at all.

d.

Flower immediately.

Question number: 107

» Plant Physiology » Photosynthesis » Photorespiration C3 and C4 Pathways

MCQ▾

Question

Aerobic respiration is more advantageous to a large organism than anaerobic respiration, because aerobic respiration

Choices

Choice (4) Response

a.

Releases more energy from an equal amount of nutrients.

b.

produced oxygen as a waste product

c.

does not require sunlight

d.

does not require molecular oxygen and hydrogen

Question number: 108

» Plant Physiology » Photosynthesis » Photorespiration C3 and C4 Pathways

MCQ▾

Question

Conversion of pyruvic acid into ethyl alcohol is facilitated by the enzymes

Choices

Choice (4) Response

a.

Dehydrogenase

b.

Decarboxylase and dehydrogenase

c.

Carboxylase

d.

Phosphatase

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