Water potential is same as . . . . . . .

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(D) Water potential $(\Psi_w)$ is the potential energy of water in a system compared to pure water. Historically, the term $DPD$ (Diffusion Pressure D

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diffusion pressure deficit

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(D) Water potential $(\Psi_w)$ is the potential energy of water in a system compared to pure water. Historically, the term $DPD$ (Diffusion Pressure Deficit) was used to describe the water-absorbing capacity of a cell. $DPD$ is defined as the difference between the diffusion pressure of a solution and that of its pure solvent. Since water potential is the negative value of $DPD$ $(\Psi_w = -DPD)$, they represent the same physical phenomenon regarding the movement of water in plant cells.

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