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Question

Name the following by choosing the correct option:
The force contributing to the ascent of sap to the topmost regions of the plants is:
[1 Mark]

A
Diffusion
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B
Active transport
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C
Transpiration pull
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D
Osmotic pressure
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Solution

The correct option is C Transpiration pull
Transpiration pull is a suction force that helps in drawing water in an upward direction from the roots to the leaves. This arises due to the constant process of transpiration in the plant body. It helps in the movement of water as well as the minerals dissolved in it from the roots to the upper parts of the plants through the xylem vessels.

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