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(C) The correct answer is $C$. Diffusion pressure deficit $(DPD)$ is the reduction in the diffusion pressure of water in a system compared to its pure

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movement of water from cell $A$ to $B$

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(C) The correct answer is $C$. Diffusion pressure deficit $(DPD)$ is the reduction in the diffusion pressure of water in a system compared to its pure state. It is calculated using the formula: $DPD = O.P. - T.P.$ For cell $A$: $DPD = 10 \ atm - 7 \ atm = 3 \ atm$. For cell $B$: $DPD = 8 \ atm - 3 \ atm = 5 \ atm$. Water always moves from a region of lower $DPD$ to a region of higher $DPD$. Since cell $A$ has a lower $DPD$ $(3 \ atm)$ and cell $B$ has a higher $DPD$ $(5 \ atm)$,water will move from cell $A$ to cell $B$.

Two cells $A$ and $B$ are contiguous. Cell $A$ has osmotic pressure $10 \ atm$,turgor pressure $7 \ atm$ and diffusion pressure deficit $3 \ atm$. Cell $B$ has osmotic pressure $8 \ atm$,turgor pressure $3 \ atm$ and diffusion pressure deficit $5 \ atm$. The result will be

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