Question

what is root pressure ? how is it usefull to the plant.​

Answer 1

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Root pressure, in plants, force that helps to drive fluids upward into the water-conducting vessels (xylem). It is primarily generated by osmotic pressure in the cells of the roots and can be demonstrated by exudation of fluid when the stem is cut off just aboveground.

Answer 2

Explanation:

The root pressure is the pressure which is exerted on the liquid contents of the fully turgid cortex cells of the root, forcing some of it into the xylem vessels and up through the stem. It is a vital phenomenon and depends upon the activity of the living cells of the root. This is the osmotic pressure which causes the water in the xylem to travel in the upward direction. This is necessary for supplying the cells of the plants with water and the mineral nutrients. This pressure is responsible for the absorption of water and the essential minerals from the soil.

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