Plant Anatomy and Physiology MCQ question and answer with solution

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Each section contains 100 MCQs on Plant Anatomy and Physiology .

The complete regular metabolic cycle of reactions of taking place in the dark reaction of photosynthesis is called as

A) C₄ cycle B) Hatch and Slack pathway C) Non-cyclic photophosphorylation D) C₃ cycle

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The structural adaptations of hydrophytes are correlated with

A) Decrease in oxygen supply due to slow solubility of oxygen in water B) Absence of structures needed for water loss during transpiration C) Extreme decrease in mechanical and water conducting tissue D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following wall layers is the last to attain maturity?

A) Outer tapetum B) Inner tapetum C) Endothecium D) Middle layer

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

During photokinesis when only a part of the body of an animal deviates always from the source of light, the reaction is termed

A) Rheokinesis B) Klinokinesis C) Photoklinokinesis D) Phototropotaxis

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Abscisic acid is also known as stress hormone because

A) it is a plant growth inhibitor B) it is an inhibitor of plant metabolism C) it inhibits seed germination D) it increases the tolerance of plants to various kinds of stresses

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The points regarding the structure of the mature embryo sac that have proved of special signification in taxonomic considerations include

A) The structure and shape of the embryo sac B) The number of nuclei and their distribution in embryo sac C) Persistence or disappearance of the synergids and antipodals in the embryo sac after or before fertilization D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following plants belongs to "semi-mangrove" group?

A) Nipa fruticans B) Rhizophora mucronata C) Acanthus ilicifolius D) Xylocarpus granatum

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Organic substances which are synthesized in minute quantities in one part of the plant body and transported to another part where they influence specific physiological processes are known as

A) Enzymes B) Growth regulators C) Growth hormones D) Growth inhibitors

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The germination of lettuce seeds is

A) Stimulated by red light and inhibited by infrared B) Stimulated by ultraviolet and inhibited by infrared C) Stimulated by infrared and inhibited by red light D) Stimulated by ultraviolet and inhibited by red light

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The structural organisation of an ecosystem presented in terms of weight of organisms at each trophic level is known as

A) Pyramid of energy B) Pyramid of number C) Pyramid of biomass D) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Plant Anatomy and Physiology MCQ question and answer with solution | Biology Gk MCQs