Plant Anatomy and Physiology MCQ question and answer with solution

91

When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up or dries because

A) Water from soil cannot rise to aerial parts B) Roots are starved of energy C) Tree is infected by the soil microbes D) Roots do not receive oxygen for respiration

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Answer & Solution

Answer: Option B

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92

In arctic and alpine climates where temperature is very low and the favourable period for blossoming is very brief,

A) Annual plants are very common B) Perennial herbs with long resting period are common C) Wood plants are very common D) None of the above

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Answer & Solution

Answer: Option B

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93

Which of the following formations occurs in plains around Lanka and Hojai which are surrounded on the north and east by the Mikir hills and on the south-west by the North Cachar and Jaintia hills?

A) The tropical Cinnamomum - Amoora - Michelia formation B) The Tetrameles - Stereospermum - Cedrela formation C) The deciduous Shorea - Dillenia - Lagerstroemia formation D) None of the above

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Answer & Solution

Answer: Option C

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94

The process of ATP formation by the transfer of phosphate from one of the intermediates of the glycolytic pathway to ADP is termed as

A) Complex level phosphorylation B) Oxidative phosphorylation C) Cyclic photophosphorylation D) Substrate level phosphorylation

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Answer & Solution

Answer: Option D

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95

Match List-I (Tropical evergreen woodlands) with List-II (Locations) and select the correct answer:

List-I	List-II
a. Chaparral	1. Pacific coast
b. Maquis	2. Australia's south coast
c. Encinar	3. Spain
d. Melle scrab	4. Mediterranean

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

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Answer & Solution

Answer: Option D

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96

Which of the following processes makes direct use of oxygen?

A) Glycolysis B) Fermentation C) Citic Acid Cycle D) Electron transport

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Answer & Solution

Answer: Option D

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97

Consider the following statements regarding com smut disease and choose the correct answer:
1. No symptoms appear on the host plant before the formation of smut ball
2. The smut balls appear on the ears or stems
3. The galls at an early stage are dark coloured and inedible
4. Towards maturity the tumours tum sooty due to spore formation inside

A) Only 1, 2 and 3 are true B) Only 1, 2 and 4 are true C) Only 3 and 4 are true D) 1, 2, 3 and 4 are true

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Answer & Solution

Answer: Option B

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98

In India, the Central Government passed 'Destructive Insects and Pests Act' in

A) 1941 B) 1931 C) 1914 D) 1920

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Answer & Solution

Answer: Option C

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99

A large number of identical plants can be obtained in a short span of time through

A) large number of seeds of a single plant B) stem cuttings C) tissue culture technique D) hydroponics method

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Answer & Solution

Answer: Option C

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100

The main photosynthetic pigments in the plants are

A) chlorophyll-a and chlorophyll-c B) chlorophyll-a and chlorophyll-d C) chlorophyll-b and chlorophyll-a D) chlorophyll-b and chlorophyll-c

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Answer & Solution

Answer: Option C

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