Plant Physiology (NEET Biology): Questions 18 - 23 of 273

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Question number: 18

» Plant Physiology » Photosynthesis » Photorespiration C3 and C4 Pathways

MCQ▾

Question

Which of the following enzyme is responsible for the conversion of oxaloacetic acid into malic acid?

Choices

Choice (4) Response

a.

PEP oxidase

b.

Malate dehydrogenase.

c.

PEP dismutase

d.

PEP reductase

Question number: 19

» Plant Physiology » Mineral Nutrients » Macro and Micronutrients

MCQ▾

Question

Knot like bodies known as ‘nodules’ found in the roots of groundnut plant are produced by

Choices

Choice (4) Response

a.

Azospirillum

b.

Rhizobium

c.

Azotobacter

d.

Pseudomonas

Question number: 20

» Plant Physiology » Mineral Nutrients » Macro and Micronutrients

MCQ▾

Question

Essential microelements are

Choices

Choice (4) Response

a.

Produced by growth hormones

b.

Manufactured during photosynthesis

c.

Absorbed from soil

d.

Produced by enzymes

Question number: 21

» Plant Physiology » Mineral Nutrients » Essential Minerals

MCQ▾

Question

Non-essential element in plant is

Choices

Choice (4) Response

a.

Potassium

b.

Calcium

c.

Barium

d.

Magnesium

Question number: 22

» Plant Physiology » Photosynthesis » Photorespiration C3 and C4 Pathways

MCQ▾

Question

Which is not true for glycolysis?

Choices

Choice (4) Response

a.

Substrate level phosphorylation

b.

End product is CO2, H2O

c.

Expenditure of ATP

d.

Production of ATP

Question number: 23

» Plant Physiology » Photosynthesis » Chemiosmotic Hypothesis

MCQ▾

Question

When an unripe banana is sealed in a polythene bag, it remains green for many days. But if an apple is also sealed in the same bag, the banana ripens and turns yellow within a few days. The reason is that apple

Choices

Choice (4) Response

a.

Releases ethylene which promotes ripening.

b.

Removes CO2 which inhibits ripening.

c.

Produces CO2 which promotes ripening.

d.

Removes O2 released by the banana and thus promotes ripening.

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