Question

Discuss the role of transpiration in ascent of sap.​

Answer 1

Answer:

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The water deficit developed in leaf cells due to transpiration is responsible for pulling the water upward. This process is referred to as ascent of sap. The evaporation of water from the leaf creates a suction force which is responsible for pulling water from the xylem cells of roots.

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Explanation:

Answer 2

Evaporation of water molecules from the cells of a leaf creates a suction which pulls water from the xylem cells of roots. Thus,transpiration helps in the absorption and upward movement of water and minerals dissolved in it from roots to the leaves.