Plant Anatomy and Physiology MCQ question and answer with solution

21

Typha propagates vegetatively with the help of

A) Corm B) Root C) Adventitious root D) Rhizome

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Answer & Solution

Answer: Option D

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22

The activities that take place during afterripening include:

A) Transfer of compounds from storage cells to the embryo is reduced B) Sugar accumulation takes place C) Digestion of various storage lipids is restricted D) All of the above

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Answer & Solution

Answer: Option B

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23

The main ecological factors operating on the alpine vegetation include

A) Action of cold wind which has dry action B) High temperature which sometimes reaches above 40° C C) Difference between direct and indirect sunlight which is less than that of plains D) Both A and C

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Answer & Solution

Answer: Option A

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24

The process through which excess of light energy is dissipated in photosynthesis is known as

A) scavenging B) photolysis C) photophosphorylation D) quenching

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Answer & Solution

Answer: Option D

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25

The wheat plants with infected ears, which emerge out of the boot leaves earlier than the healthy ones, may be uprooted at once and burnt. Tnis practice is called

A) Grain dressing B) Crop rotation C) Rogueing D) None of the above

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Answer & Solution

Answer: Option C

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26

Match List-I with List-II and select the correct answer:

List-I	List-II
a. Chlorophyll- a	1. C₅₅ H₇₄ O₆ N₄ Mg
b. Chlorophyll - b	2. C₅₅ H₇₀ O₆ N₄ Mg
c. Chlorophyll - d	3. C₅₅ G₇₂ O₅ N₄ Mg
d. Bacteriochlorophyll	4. C₅₄ H₇₀ O₆ N₄ Mg

A) a-2, b-1, c-4, d-3 B) a-3, b-2, c-1, d-4 C) a-1, b-2, c-3, d-4 D) a-3, b-2, c-4, d-1

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Answer & Solution

Answer: Option D

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27

Progamic fertilization usually takes place in

A) Circinotropous ovule B) Anatropous ovule C) Campylotropous ovule D) Orthotropous ovule

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Answer & Solution

Answer: Option B

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28

Identify parasite in the following.

A) Pitcher plant B) Cuscuta C) Bladderwort D) Sunflower

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Answer & Solution

Answer: Option B

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29

If a smaller dosage of gibberellin is applied to a plant, it

A) Will both bolt and flower B) Will flower but not bolt C) Will bolt but not flower D) Will neither bolt nor flower

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Answer & Solution

Answer: Option C

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30

All the progeny obtained from a single plant by vegetative propagation are called

A) clones B) pure line C) inbreed line D) pedigree line

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Answer & Solution

Answer: Option A

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