How does transpiration help in the uptake of
water from the soil?
Answers
Answer:
Transpiration is the loss of water in vapour form from the leaves into the air. As water is used up or lost from the leaves, more is sucked up from the xylem vessels. It’s like sucking water up a straw. So there is a continuous flow of water from the roots to the leaves. This movement of water up the xylem is called the transpiration stream.
Explanation:
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Answer:
Xylem vessels contains water as a continuous follow from the root tip to the mesophyll cells of the leaves. When water is lost from the leaves due to transpiration, the water column becomes greatly stretched. However, continuity of water column does not break due to the forces of Cohesion among the water molecules and relation adhesion between the water molecules and the molecules of the walls of xylem vessels.
The Cohesion-adhesion tension of the continuous chain of water molecules and the transpirational pull help in the ascent of sap from the root to the apex of a lofty tree.