During absorption of H_2O by roots,the H_2O p | vedclass

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(B) During the absorption of water by roots,the water potential of the cell sap is lower than that of pure water.Water moves from a region of higher w

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That of pure $H_2O$

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(B) During the absorption of water by roots,the water potential of the cell sap is lower than that of pure water.Water moves from a region of higher water potential to a region of lower water potential.Since pure water has the highest water potential $(0 	ext{ bars})$,the cell sap,which contains solutes,has a negative water potential.Therefore,water flows from the soil (higher potential) into the root hair cells (lower potential) due to the osmotic gradient.

During absorption of $H_2O$ by roots,the $H_2O$ potential of cell sap is lower than that of

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