Plant Physiology (NEET (National Eligibility cum Medical Entrance Test) Biology): Questions 233 - 239 of 279

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Question number: 233

» Plant Physiology » Mineral Nutrients » Nitrogen Metabolism

MCQ▾

Question

The converson of ammonia into nitrites and nitrates is called

Choices

Choice (4) Response

a.

Ammonification

b.

All of these

c.

Denitrification

d.

Nitrification

Question number: 234

» Plant Physiology » Mineral Nutrients » Deficiency Symptoms

MCQ▾

Question

Which of the following is used as green manure?

Choices

Choice (4) Response

a.

Crotalaria juncea

b.

Azolla

c.

Azadirachta indica

d.

Hevea brassiliansis

Question number: 235

» Plant Physiology » Plant Growth and Development » Photoperiodism

MCQ▾

Question

On touching’ the leaves of Mimosa pudica droop down because of

Choices

Choice (4) Response

a.

Chemonasty

b.

Seismonasty

c.

Thigmotoropism

d.

Hydrotropism

Question number: 236

» Plant Physiology » Photosynthesis » Photochemical and Biosynthetic Phases

MCQ▾

Question

The order of occurrence of the cytochromes in the F1 particles is

Choices

Choice (4) Response

a.

cyt a- cyt b, cyt c- cyt a3

b.

cyt b, cyt c, cyt a- cyt a3

c.

cyt a3- cyt a, cyt c, cyt b

d.

cyt c, cyt b, cyt a- cyta3

Question number: 237

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

MCQ▾

Question

Abscisic acid (ABA) is a stress related hormone and it also

Choices

Choice (4) Response

a.

Stimulates mitosis.

b.

Mediated stomatal closure.

c.

Accelerates fruit ripening.

d.

Aids in fruit development.

Question number: 238

» Plant Physiology » Photosynthesis » Photorespiration C3 and C4 Pathways

MCQ▾

Question

Dark reaction of photosynthesis is called so because

Choices

Choice (4) Response

a.

Cannot occur during day time.

b.

It does not require light energy.

c.

It can also occur in dark.

d.

It occurs more rapidly in night.

Question number: 239

» Plant Physiology » Photosynthesis » Photorespiration C3 and C4 Pathways

MCQ▾

Question

Which one of the following reactions represents anaerobic respiration?

Choices

Choice (4) Response

a.

C6H12O6+6O2→CO2+H2O + energy

b.

6CO2+6H2O→C6H12O6+6H2O + 3O2

c.

6CO2+6H2→C6H12O6+3O2

d.

C6H12O6→2C2H5OH + 2CO2+energy

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