Plant Physiology-Transport in Plants (NEET Biology): Questions 45 - 50 of 78

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Question number: 45

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

MCQ▾

Question

Which of the following contributes the explains the rise of water from the ground to the leaves of a tall tree?

Or

The factor or process which best explains the rise of water from roots to the top of tall tree is

Choices

Choice (4) Response

a.

Capillary rise of water in xylem

b.

Break down of ATP

c.

Root pressure

d.

Cohesion of water and transpiration pull.

Question number: 46

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

MCQ▾

Question

Which one of the following will reduce the rate of transpiration?

Choices

Choice (4) Response

a.

Increase in water uptake by plants.

b.

Decrease in light intensity.

c.

Increase in wind velocity.

d.

Rise in temperature.

Question number: 47

» Plant Physiology » Transport in Plants » Transpiration Pull

MCQ▾

Question

Potometer and Clinostat are used to study

Choices

Choice (4) Response

a.

Transpiration and growth

b.

Photosynthesis and respiration

c.

Transpiration and geotropism

d.

Phototropism and geotropism

Question number: 48

» Plant Physiology » Transport in Plants » Osmosis

MCQ▾

Question

Wilting occurs

Choices

Choice (4) Response

a.

When rate of transpiration is higher than absorption

b.

When excess root pressure

c.

Due to high relative humidity in air

d.

When rate of absorption is higher than transpiration

Question number: 49

» Plant Physiology » Transport in Plants » Water Potential

MCQ▾

Question

The transport of water and salts takes place through

Choices

Choice (4) Response

a.

Phloem

b.

Sieve tubes

c.

Sclerenchyma

d.

Xylem

Question number: 50

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

MCQ▾

Question

Opening and closing of stomata is controlled by

Choices

Choice (4) Response

a.

N

b.

Mg2+

c.

K+

d.

Ca2+

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