111.
Which among the following is a synthetic plant hormone A
IAA
B
GA
C
2, 4-D
D
ABA
Answer :
2, 4-D
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112.
The ability of the Venus fly trap to capture insects is due to: A
specialised "muscle-like" cells
B
chemical stimulation by the prey
C
a passive process requiring no special ability on the part of the plant
D
rapid turgor pressure changes
Answer :
rapid turgor pressure changes
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113.
Plant growth is A
Limited
B
Unlimited
C
Diffused
D
Both A and B
Answer :
Unlimited
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114.
Energy dependent absorption of water against osmotic phenomenon is A
Active absorption
B
Passive absorption
C
Imbibition
D
Bulk absorption
Answer :
Active absorption
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115.
The element which can not be placed along with micronutrients A
Mn
B
Mo
C
Cu
D
Ca
Answer :
Ca
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116.
Hormone which breaks seed dormancy is A
Auxin
B
Gibberellin
C
Ethylene
D
Cytokinin
Answer :
Gibberellin
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117.
The " proton transport concept " for the opening of photoactive stomata was given by A
Yin tung
B
Levitt
C
Sachs
D
Sayre
Answer :
Levitt
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118.
Photometer and Clinostat are uses to study A
Photosynthesis and respiration
B
Transpiration and growth
C
Phototropism and Geotropism
D
Transpiration and Geotropism
Answer :
Transpiration and Geotropism
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119.
If a cell A with DPD 4 bars is connected to cell B, C, D whose OP and TP are respectively 4 and 4, 10 and 5 and 7 and 3 bars, the flow of water will be A
A and D to B and C
B
A to B, C and D
C
B to A, C and D
D
C to A, B and D
Answer :
B to A, C and D
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120.
Essential mineral nutrients are the elements A
In the absence of which plants cannot complete their life cycle
B
Which cannot be replaced by other element in its function
C
The element which is directly associated with metabolism of the plant
D
All of the above
Answer :
All of the above
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