During the absorption of water by roots, the | vedclass

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Question

(A) For water to move from the soil into the root hair cells via osmosis, the water potential $(\Psi_w)$ of the root hair cell sap must be lower than

Vedclass · Accepted Answer

Pure water and soil solution

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(A) For water to move from the soil into the root hair cells via osmosis, the water potential $(\Psi_w)$ of the root hair cell sap must be lower than the water potential of the soil solution.Since pure water has the highest water potential $(0 	ext{ MPa})$, the water potential of the soil solution is always lower than that of pure water, and the water potential of the cell sap is even lower than that of the soil solution to facilitate the inward movement of water.Therefore, the water potential of the cell sap is lower than both the soil solution and pure water.

During the absorption of water by roots, the water potential of cell sap is lower than that of:

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