Water moves up against gravity and even for a | vedclass

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(A) $\Rightarrow$ The transpiration pull (or suction force) is the primary physiological phenomenon responsible for the upward movement of water in pl

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Transpiration pull

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(A) $\Rightarrow$ The transpiration pull (or suction force) is the primary physiological phenomenon responsible for the upward movement of water in plants, allowing it to reach heights of up to $130 \,m$ through the xylem.$\Rightarrow$ As water molecules evaporate from the stomata of the leaves, a negative pressure or tension is created in the xylem vessels.$\Rightarrow$ This tension pulls the continuous column of water upwards from the roots to the leaves due to the cohesive and adhesive properties of water molecules.$\Rightarrow$ This process effectively overcomes the force of gravity, enabling water to reach the tips of tall trees within a short period.

Water moves up against gravity and even for a tree of $20 \,m$ height, the tip receives water within two hours. The most important physiological phenomenon which is responsible for the upward movement of water is $...........$

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