101.
Who stated " Transpiration to be and unavoidable evil A
Blackman
B
Stewaed
C
Priestley
D
Curitis
Answer :
Stewaed
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102.
Osmotic potential is numerically equal to A
Turgor pressure
B
Wall pressure
C
Osmotic pressure
D
D.P.D
Answer :
Osmotic pressure
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103.
Transpiration is a non- enzymatic its Q10 value is A
1
B
2
C
3.5
D
Zero
Answer :
2
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104.
Phytochormone commonly clled stress hormone is A
Auxin
B
Abscissic acid
C
Gibberellin
D
Cytokinins
Answer :
Abscissic acid
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105.
Ringing experiment can not be done on a sugar cane plant because A
Its xylem is scanty
B
Its phloem is with out phloem parenchyma
C
Its vascular bundles are scattered
D
Its phloem is present inside the xylem
Answer :
Its vascular bundles are scattered
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106.
Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options A
Both processes cannot happen simultaneously
B
Both processes can happen together because the diffusion coefficient of water and $$C{O_2}$$ is different
C
The above processes happen only during night time
D
One process occurs during day time, and the other at night
Answer :
Both processes can happen together because the diffusion coefficient of water and $$C{O_2}$$ is different
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107.
Which of the following statement is not true A
Transpiration is increased when root shoot ratio in increased
B
Transpiration is increased when latex & mucilage is increased in tissue
C
Transpiration is decreased when stomata are sunken
D
Transpiration is decreased when leaves becomes leathery or hairy
Answer :
Transpiration is increased when latex & mucilage is increased in tissue
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108.
Increased humidity in atmosphere decreases rate of A
Transiratioin
B
Photosynthesis
C
Glycolysis
D
Growth
Answer :
Transiratioin
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109.
Water movement between cells is due to A
T.P
B
W.P
C
D.P.D
D
Incipient plasmolysis
Answer :
D.P.D
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110.
Opening of flower is an example of A
Spontaneous movement
B
Hyponastic movement
C
Epinastic movement
D
Cleistogamous movement
Answer :
Epinastic movement
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