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Tension, one of the important factor in the movement of xylem sap in a tree is a result of |
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a) |
Cohesive nature of water |
b) |
Capillary size of xylem tube |
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c) |
Transpiration at the leaf surface |
d) |
All at the above |
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Tension, one of the important factor in the movement of xylem sap in a tree is a result of |
|||
|
a) |
Cohesive nature of water |
b) |
Capillary size of xylem tube |
|
c) |
Transpiration at the leaf surface |
d) |
All at the above |
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(c) Loss of water from the aerial parts of plant through continuous transpiration causes a suction pressure or tension in the water column of plant. This tension develops due to transpiration and is also called as transpirational pull |