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Question
Water from the soil enters into the root hairs on account of
Water from the soil enters into the root hairs on account of
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Solution
The correct option is B Suction pressure or DPD
'Diffusion pressure deficit' (DPD) is an important force deciding about movement of water. Water moves from a region of low DPD to a region of high DPD. The soil solution is a dilute solution of mineral nutrients, hence it has low DPD. The cell sap is more concentrated and has higher DPD. Thus, water enters the cell as it moves from low DPD to high DPD.
'Diffusion pressure deficit' (DPD) is an important force deciding about movement of water. Water moves from a region of low DPD to a region of high DPD. The soil solution is a dilute solution of mineral nutrients, hence it has low DPD. The cell sap is more concentrated and has higher DPD. Thus, water enters the cell as it moves from low DPD to high DPD.
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