191.
The form of water absorbed by plant's root system. From the soil is
A
Hygroscopic water
B
Gravitational water
C
Capillary water
D
All of the above
Answer :
Capillary water
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192.
Which tissue are removed when a plant is girdled
A
Xylem & pith
B
Xylem & phloem
C
Phloem to epidermis
D
Phloem to pith
Answer :
Phloem to epidermis
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193.
Water potential of a cell when its placed in hypertonic solution
A
Decreases
B
Increases
C
First increases then decreases
D
No change
Answer :
Decreases
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194.
Who is called father of Indian plant physiology
A
J.C.Bose
B
Calvin
C
R.Mishra
D
K.K.Nanda
Answer :
J.C.Bose
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195.
Phytotron is
A
A controlled condition chamber for plants
B
Leaf culture process
C
Special culture of seeds
D
Root culture process
Answer :
A controlled condition chamber for plants
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196.
Processes occur in leaves, which may lower their temperature is
A
Respiration
B
Photosynthesis
C
Hydrolysis
D
Transpiration
Answer :
Transpiration
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197.
The most important factor affecting transpiration is
A
Light
B
Temperature
C
Wind
D
Atmospheric humidity
Answer :
Atmospheric humidity
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198.
Which hormone is used to induce ripening in banana
A
Cytokinin
B
Ethylene
C
ABA
D
GA3
Answer :
Ethylene
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199.
Which of the following is related with transfer of food material
A
Xylem
B
Collenchyma
C
Phloem
D
Parenchyma
Answer :
Phloem
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200.
When water enters into in to a cell what happens to its OP. TP and DPD
A
OP&TP increase & its DPD increase
B
OP&DPD increase& decrease
C
OP&DPD decrease &OP increase
D
OP&DPD decrease & TP increase
Answer :
OP&DPD decrease & TP increase
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