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

81.
The agrochemicals like pesticides, insecticides and fungicides disturb the whole food chain through a process called

A. Biomagnification

B. Green house effect

C. Biodegration

D. None of the above

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82.
Which of the following is an example of a prominent dormancy breaking compound with advantage of wide safety margin between active and toxic dosages?

A. Thiourea

B. 2-chloroethanol

C. 2-iodoethanol

D. Indole acetic acid

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83.
Which one of the following statements about transport mechanism in plants is correct?

A. Diffusion of ions and small molecules across cellmembrane requires energy

B. Active transport of ions and small molecules across cell membrane against concentration gradient requires energy

C. Cells conserve energy and no energy is required for transport of ions and small molecules against concentration gradient

D. Cells do not transport ions across their membrane as these are charged molecules

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84.
In India, Mishra and Rao (1948) first time reported ecotypic differentiation in

A. Lindenbergia polyantha

B. Xanthium strumarium

C. Euphorbia thymifolia

D. Cassia tora

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85.
Which of the following pollution types is the most common and dangerous type of environmental pollution that has been reported in all metropolitan cities and industrialised countries of the world?

A. Air pollution

B. Water pollution

C. Noise pollution

D. Land pollution

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86.
In which of the following types of endosperm, the first nuclear division of the primary endosperm nucleus is followed by the formation of either a longitudinal or transverse wall in the central cell?

A. Helobial endosperm

B. Nuclear endosperm

C. Cellular endosperm

D. Both A and B

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87.
Match List-I with List-II and select the correct answer:

List-I List-II

a. Gravelly soil 1. Soil contains large particles of rocks together with sand and silt

b. Silt soil 2. Soil directly derived from limestones

c. Loam soil 3. Soil is practically intermediate between sandy and clay soils

d. Calcareous soil 4. Soil composed of sand, silt and clay particles of different sizes in more or less equal proportions

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

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

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

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

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88.
In which of the following ecosystems, secondary and tertiary consumers are usually absent?

A. Forest ecosystem

B. Cropland ecosystem

C. Salt-water ecosystem

D. Grassland ecosystem

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89.
During microsporogenesis the middle layers become flattened and crushed at the time of meiotic divisions in the microspore mother cells except in

A. Holoptelea

B. Ranunculus

C. Gloriosa

D. All of the above

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90.
Which of the following plants do not flower in response to gibberellins?

A. Long-day plants with rosette in form

B. Long-short-day plants

C. Long-day plants but not rosette in form

D. All of the above

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1 2 3 4 5 6 7 8 9 10

List-I	List-II
a. Gravelly soil	1. Soil contains large particles of rocks together with sand and silt
b. Silt soil	2. Soil directly derived from limestones
c. Loam soil	3. Soil is practically intermediate between sandy and clay soils
d. Calcareous soil	4. Soil composed of sand, silt and clay particles of different sizes in more or less equal proportions

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

81. The agrochemicals like pesticides, insecticides and fungicides disturb the whole food chain through a process called

Answer & Solution

82. Which of the following is an example of a prominent dormancy breaking compound with advantage of wide safety margin between active and toxic dosages?

Answer & Solution

83. Which one of the following statements about transport mechanism in plants is correct?

Answer & Solution

84. In India, Mishra and Rao (1948) first time reported ecotypic differentiation in

Answer & Solution

85. Which of the following pollution types is the most common and dangerous type of environmental pollution that has been reported in all metropolitan cities and industrialised countries of the world?

Answer & Solution

86. In which of the following types of endosperm, the first nuclear division of the primary endosperm nucleus is followed by the formation of either a longitudinal or transverse wall in the central cell?

Answer & Solution

Answer & Solution

88. In which of the following ecosystems, secondary and tertiary consumers are usually absent?

Answer & Solution

89. During microsporogenesis the middle layers become flattened and crushed at the time of meiotic divisions in the microspore mother cells except in

Answer & Solution

90. Which of the following plants do not flower in response to gibberellins?

Answer & Solution

Read More Section(Plant Anatomy and Physiology)

81.
The agrochemicals like pesticides, insecticides and fungicides disturb the whole food chain through a process called

82.
Which of the following is an example of a prominent dormancy breaking compound with advantage of wide safety margin between active and toxic dosages?

83.
Which one of the following statements about transport mechanism in plants is correct?

84.
In India, Mishra and Rao (1948) first time reported ecotypic differentiation in

85.
Which of the following pollution types is the most common and dangerous type of environmental pollution that has been reported in all metropolitan cities and industrialised countries of the world?

86.
In which of the following types of endosperm, the first nuclear division of the primary endosperm nucleus is followed by the formation of either a longitudinal or transverse wall in the central cell?

88.
In which of the following ecosystems, secondary and tertiary consumers are usually absent?

89.
During microsporogenesis the middle layers become flattened and crushed at the time of meiotic divisions in the microspore mother cells except in

90.
Which of the following plants do not flower in response to gibberellins?