Plant Physiology (NEET Biology): Questions 124 - 131 of 257

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Question number: 124

» Plant Physiology » Plant Growth and Development » Conditions of Growth

MCQ▾

Question

Etiolation in plants is caused when they

Choices

Choice (4) Response
a.

Are grown in intense light.

b.

Have mineral deficiency.

c.

Are grown in dark.

d.

Are grown in blue light.

Question number: 125

» Plant Physiology » Mineral Nutrients » Essential Minerals

MCQ▾

Question

An essential element is one which

Choices

Choice (4) Response
a.

Available in soil

b.

Is present in plant ash

c.

Improve plant growth

d.

Is indispensable for growth and is irreplaceable

Question number: 126

» Plant Physiology » Plant Growth and Development » Conditions of Growth

MCQ▾

Question

Loranthus is a

Choices

Choice (4) Response
a.

total stem parasite

b.

partial stem parasite

c.

partial root parasite

d.

total root parasite

Question number: 127

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

MCQ▾

Question

Flowering in pineapple is promoted by

Choices

Choice (4) Response
a.

GA2

b.

Ethylene

c.

NAA

d.

Cytokinin

Question number: 128

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

MCQ▾

Question

ABA is involved in

Choices

Choice (4) Response
a.

Root elongation

b.

Dormancy of seeds

c.

Shoot elongation

d.

Increased cell division

Question number: 129

» Plant Physiology » Plant Growth and Development » Conditions of Growth

MCQ▾

Question

Epiphytes are the plants which are dependent on other plants

Choices

Choice (4) Response
a.

only for food

b.

for water and food

c.

only for water

d.

only for shelter (support)

Question number: 130

» Plant Physiology » Mineral Nutrients » Essential Minerals

MCQ▾

Question

Which group of element is not essential for a normal plant?

Choices

Choice (4) Response
a.

K, Ca, Mg,

b.

Pb, Ni, I, Na

c.

Mg, Fe or F, Mo

d.

Fe or F, Zn, Mn, B

Question number: 131

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

MCQ▾

Question

Generally stomata found on the lower surface of leaf. Thus, approximate percentage of transpiration through abaxial surface is

Choices

Choice (4) Response
a.

67 %

b.

47 %

c.

97 %

d.

57 %

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