Question

HEYA❤

Define✔️

✨ ASCENT OF SAP✨

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Answer 1

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During transportation, evaporation of water molecules from leaf cells creats a suction force or pressure in photosynthetic cells that pulls water up the column from the xylem cells of roots. This force is known as transpiration pull and is responsible for the upward movement of sap(water + minerals) from roots to leaves. Thus, water lost through stomata is replaced by the water from the xylem vessels in the leaf. This is known as ascent of sap .