Plant Physiology-Transport in Plants (NEET Biology): Questions 39 - 44 of 76

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Question number: 39

» Plant Physiology » Transport in Plants » Movement of Water, Gases and Nutrients

MCQ▾

Question

Conduction of inorganic materials in plants occur mainly through or Minerals absorbed by roots move at the leaf through

Choices

Choice (4) Response

a.

xylem

b.

sieve tube

c.

phloem

d.

All of the above

Question number: 40

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

MCQ▾

Question

Under what conditions the rate of transpiration increases?

Choices

Choice (4) Response

a.

Decrease of temperature.

b.

Decrease of humidity

c.

Increase of atmospheric pressure.

d.

Increase of humidity.

Question number: 41

» Plant Physiology » Transport in Plants » Guttation

MCQ▾

Question

Guttation is caused due to

Choices

Choice (4) Response

a.

Transpiration

b.

Imbibition

c.

Osmosis

d.

Positive root pressure

Question number: 42

» 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: 43

» 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.

Question number: 44

» Plant Physiology » Transport in Plants » Transpiration Pull

MCQ▾

Question

The loss of water in the form of vapour from aerial plant parts is known as

Choices

Choice (4) Response

a.

Respiration

b.

Osmosis

c.

Transpiration

d.

Photosynthesis

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