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Question

The given diagram shows which of the following phenomena.
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A
Transpirational pull
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B
Root pressure theory
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C
Pulsatory activity in living cells
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D
None of the above
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Solution

The correct option is B Pulsatory activity in living cells
The movement of water in the plants is known as the ascent of the sap. This upward movement is due to the pulsatory activity of the living cell. This theory was supported by J. C. Bose. he explained that there is rhythmic form of pulse-like movement which helps the water to be transported in the upward direction.
Thus, the correct answer is option C.

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