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Absorption by roots - The Processes Involved — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyAbsorption by roots - The Processes Involved1 Mark
Question
Explain the term :
Transpiration pull
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Answer

Transpiration pull : The primary mechanism driving the ascent of sap in plants.It is suction force driven by the evaporation of water from the surfaces of the leaves (transpiration),creating a negative pressure (tension) that pulls water upward from the roots through the xylem vessels.

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