Plant Anatomy and Physiology MCQ question and answer with solution

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10

31.
Consider the following statements regarding malacophyllous xerophytes and choose the correct answer:
1. Malacophyllous xerophytes are characterised by reduced stem and succulent leaves
2. Succulent leaves are usually large in size and are often more or less circular in shape
3. Succulent leaves possess prominent water storage tissue consisting of thin-walled parenchymatous cells
4. The amount of chlorophyll gradually increases from periphery to the centre in the leave

A. Only 1, 2 and 3 are true

B. Only 2 and 4 are true

C. Only 1 and 3 are true

D. Only 1, 3 and 4 are true

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32.
According to Stopes (1907), the xerophytism in the coniferae is due to the presence of

A. Xylem vessels in the wood

B. Phloem fibres in the wood

C. Tracheids in the wood

D. Medullary rays in the wood

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33.
Organisms which spend most of their time on the underside of the air-water interface and obtain much of their food from within water are termed

A. Nekton

B. Epineuston

C. Hyponeuston

D. Plankton

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34.
The pyramid of biomass may be inverted in case of

A. Marine ecosystem

B. Fresh water ecosystem

C. Desert ecosystem

D. Parasitic ecosystem

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35.
During anaerobic respiration, carbon dioxide evolution takes place without any oxygen uptake, giving an RQ to

A. One

B. Zero

C. Infinity

D. More than ten

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36.
Rhizobium fixes atmospheric nitrogen to ammonia in the presence of the red pigment called

A. Xanthophyll

B. Leghemoglobin

C. Hemoglobin

D. Phycobilin

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37.
The most extensive and common method of reproduction in runners, stolons, stem and root tubers, dormant apices, offsets etc., is

A. Sexual reproduction

B. Asexual reproduction

C. Vegetative propagation

D. Both A and B

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38.
Match List-I with List-II and select the correct answer:

List-I (Diseases) List-II (Symptoms)

a. Blights 1. Sudden death of blossoms, young leaves and twigs, usually before they are fully developed

b. Pustules 2. Failure of chlorophyll development caused by mineral deficiencies

c. Chlorosis 3. Unequal development of chlorophyll in different parts of a leaf, caused chiefly by viruses

d. Mosaics 4. Blisters, formed by the rupture of the surface tissues of a host by spore masses or fruiting bodies of patbogenic fungi

A. a-2, b-1, c-3, d-4

B. a-3, b-2, c-4, d-1

C. a-1, b-4, c-2, d-3

D. a-4, b-2, c-1, d-3

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39.
The exoenzymes secreted by the cell in inactive from are known as

A. Glycogen

B. Collagen

C. Protoenzyme

D. Zymogen

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40.
Who among the following defined conservation "as the process which is concerned with the use, preservation, and proper management of the natural resources of the earth and their protection from destructive influences, misuse, decay, fire or waste"?

A. O. P. Odum (1971)

B. Southwick (1977)

C. Smith (1978)

D. None of the above

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1 2 3 4 5 6 7 8 9 10

List-I (Diseases)	List-II (Symptoms)
a. Blights	1. Sudden death of blossoms, young leaves and twigs, usually before they are fully developed
b. Pustules	2. Failure of chlorophyll development caused by mineral deficiencies
c. Chlorosis	3. Unequal development of chlorophyll in different parts of a leaf, caused chiefly by viruses
d. Mosaics	4. Blisters, formed by the rupture of the surface tissues of a host by spore masses or fruiting bodies of patbogenic fungi

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

Answer & Solution

32. According to Stopes (1907), the xerophytism in the coniferae is due to the presence of

Answer & Solution

33. Organisms which spend most of their time on the underside of the air-water interface and obtain much of their food from within water are termed

Answer & Solution

34. The pyramid of biomass may be inverted in case of

Answer & Solution

35. During anaerobic respiration, carbon dioxide evolution takes place without any oxygen uptake, giving an RQ to

Answer & Solution

36. Rhizobium fixes atmospheric nitrogen to ammonia in the presence of the red pigment called

Answer & Solution

37. The most extensive and common method of reproduction in runners, stolons, stem and root tubers, dormant apices, offsets etc., is

Answer & Solution

Answer & Solution

39. The exoenzymes secreted by the cell in inactive from are known as

Answer & Solution

40. Who among the following defined conservation "as the process which is concerned with the use, preservation, and proper management of the natural resources of the earth and their protection from destructive influences, misuse, decay, fire or waste"?

Answer & Solution

Read More Section(Plant Anatomy and Physiology)

32.
According to Stopes (1907), the xerophytism in the coniferae is due to the presence of

33.
Organisms which spend most of their time on the underside of the air-water interface and obtain much of their food from within water are termed

34.
The pyramid of biomass may be inverted in case of

35.
During anaerobic respiration, carbon dioxide evolution takes place without any oxygen uptake, giving an RQ to

36.
Rhizobium fixes atmospheric nitrogen to ammonia in the presence of the red pigment called

37.
The most extensive and common method of reproduction in runners, stolons, stem and root tubers, dormant apices, offsets etc., is

39.
The exoenzymes secreted by the cell in inactive from are known as

40.
Who among the following defined conservation "as the process which is concerned with the use, preservation, and proper management of the natural resources of the earth and their protection from destructive influences, misuse, decay, fire or waste"?