Plant Physiology (NEET Biology): Questions 165 - 170 of 273

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Question number: 165

» Plant Physiology » Photosynthesis » Site of Photosynthesis Take Place

MCQ▾

Question

During dark reaction of photosynthesis

Choices

Choice (4) Response

a.

CO2 is reduced to organic compounds.

b.

Chlorophyll is activated.

c.

Water split.

d.

6 carbon sugar is broken down into 3 carbon sugar.

Question number: 166

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

MCQ▾

Question

Which one of the following responses of plants to growth hormones is true for ethylene?

Choices

Choice (4) Response

a.

Increase in ripening of fruits

b.

Decrease in abscission of flowers.

c.

Decrease in the formation of female flowers

d.

Increase in cell elongation

Question number: 167

» 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: 168

» Plant Physiology » Photosynthesis » Factors Affecting Photosynthesis

MCQ▾

Question

Which of the following wavelength of light is absorbed maximum for photosynthesis?

Choices

Choice (4) Response

a.

Yellow light

b.

Green light

c.

Blue light

d.

Red light

Question number: 169

» Plant Physiology » Plant Growth and Development » Photoperiodism

MCQ▾

Question

In SDP flowering does not occur

Choices

Choice (4) Response

a.

When intermediate light is given red→ far red red.

b.

When interrupted by a flash red→ far light.

c.

When interrupted by a flash of far light.

d.

All of the above.

Question number: 170

» 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

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