The chief role of transpiration in plants is | vedclass

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(C) Transpiration creates a negative pressure potential (transpiration pull) in the xylem vessels. This pull is responsible for the rapid ascent of sa

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Rapid ascent of sap

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(C) Transpiration creates a negative pressure potential (transpiration pull) in the xylem vessels. This pull is responsible for the rapid ascent of sap (water and dissolved minerals) from the roots to the aerial parts of the plant. While transpiration also results in water loss and cooling,the primary physiological role in the context of plant transport is facilitating the upward movement of water.

The chief role of transpiration in plants is to cause

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