Plant Physiology (NEET (National Eligibility cum Medical Entrance Test) Biology): Questions 145 - 152 of 279

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Question number: 145

» Plant Physiology » Photosynthesis » Photorespiration C3 and C4 Pathways

MCQ▾

Question

Pneumatophores are responsible for a kind of respiration mainly present in

Choices

Choice (4) Response

a.

hydrophytes

b.

xerophytes

c.

epiphytes

d.

mangrove plants

Question number: 146

» Plant Physiology » Mineral Nutrients » Nitrogen Metabolism

MCQ▾

Question

Which element forms part of structure of chlorophyll molecule?

Choices

Choice (4) Response

a.

Mn

b.

Fe

c.

K

d.

Mg

Question number: 147

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

MCQ▾

Question

Specific property attributed to gibberellin is

Choices

Choice (4) Response

a.

Elongation of genetically dwarf plant

b.

Shortening of genetically tall plants

c.

Promotion of rooting

d.

Yellowing of young leaves.

Question number: 148

» Plant Physiology » Photosynthesis » Pigments Involved in Photosynthesis

MCQ▾

Question

The experimental material that has largely been responsible for making rapid advances in research on photosynthesis is

Choices

Choice (4) Response

a.

Spinach leaf

b.

Chlorella

c.

Hydrilla

d.

Chlamydomonas

Question number: 149

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

MCQ▾

Question

Stomata in angiosperms open and close due to

Choices

Choice (4) Response

a.

Their genetic condition.

b.

Pressure of gases inside the leaves.

c.

Effect of hormones.

d.

Changes of turgor pressure in guard cells.

Question number: 150

» Plant Physiology » Photosynthesis » Pigments Involved in Photosynthesis

MCQ▾

Question

In cyclic photophosphorylation which one of the following is formed?

Choices

Choice (4) Response

a.

NADP and ATP

b.

NADH2 and O2

c.

NADPH2, ATP and O2

d.

ATP

Question number: 151

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

MCQ▾

Question

Senescence is inhibited by

Choices

Choice (4) Response

a.

Gibberellic acid

b.

Abscissic acid

c.

Ethylene

d.

Cytokinin

Question number: 152

» Plant Physiology » Transport in Plants » Cell to Cell Transport

MCQ▾

Question

According to the well known theory of transport of solutes across cell membrane, what happens when sugar is passed through it?

Choices

Choice (4) Response

a.

Na + flows independent of sugar molecules.

b.

Na + flows against the sugar molecules.

c.

Na + ions do not flow at all.

d.

Na + flows in the direction of the sugar.

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