Plant Physiology (NEET Biology): Questions 7 - 10 of 273

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Question number: 7

» Plant Physiology » Photosynthesis » Pigments Involved in Photosynthesis

MCQ▾

Question

NADPH2 is generated through

Choices

Choice (4) Response

a.

photosystem-II

b.

photosystem-I

c.

glycolysis

d.

anaerobic respiration

Question number: 8

» Plant Physiology » Transport in Plants » Absorption

MCQ▾

Question

Which theory suggests that the CO2 produced in respiration plays an important role in mineral absorption?

Choices

Choice (4) Response

a.

Carbonic acid exchange theory

b.

Active absorption theory

c.

Contact exchange theory

d.

Question does not provide sufficient data or is vague

Question number: 9

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

MCQ▾

Question

Which of the following is the path of water from soil up to secondary xylem?

Choices

Choice (4) Response

a.

Soil → root hair cell wall → cortex → endodermis → pericycle → protoxylem → metaxylem.

b.

Metaxylem → protoxylem → cortex → soil → root hair.

c.

Pericycle → soil → root hair → cortex → endodermis → protoxylem → metaxylem.

d.

Cortex → root hair → endodermis → pericycle → protoxylem → metaxylem.

Question number: 10

» Plant Physiology » Photosynthesis » Pigments Involved in Photosynthesis

MCQ▾

Question

The main difference between the molecules of chlorophyll a and b is

Choices

Choice (4) Response

a.

The porphyrin group in chlorophyll b has no binding site but a binding site is present in chlorophyll a.

b.

chlorophyll a has an aldehyde group while chlorophyll b has a methyl group

c.

The phytol tail is absent in chlorophyll a and is present in chlorophyll b.

d.

chlorophyll a has a methyl group while chlorophyll b has an aldehyde group

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