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Question

Pressure caused by water entering the root from soil is known as

A
Imbibition
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B
Root pressure
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C
Turgor pressure
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D
Wall pressure
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Solution

The correct option is B Root pressure
Root pressure can be defined as the pressure exerted by the cortical cells of the root upon the sap in the xylem vessels which pushes the sap upward if the stem of the plant is cut just above the root water seeps or exudes out of the cut end of the stem for a considerable period of time. This indicates that there is a force pushing water up the stem from the roots.

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