Botany - Transport in Plants Question with Solution | TestHub

In such problems, we must calculate the diffusion pressure deficit (DPD) of the cell A and B. Formula:$\mathrm{D}\mathrm{P}\mathrm{D}\mathrm{ }=\mathrm{ }\mathrm{O}\mathrm{P}\mathrm{ }–\mathrm{ }\mathrm{T}\mathrm{P}$. It is also called suction pressure- net pressure causing water to enter the cell.

DPD of cell$\mathrm{X}\mathrm{ }=\mathrm{ }8\mathrm{ }–\mathrm{ }6\mathrm{ }=\mathrm{ }2$. DPD of cell$\mathrm{Y}\mathrm{ }=\mathrm{ }12\mathrm{ }–\mathrm{ }8\mathrm{ }=\mathrm{ }4$. Water will always move from a cell with lesser DPD to a cell with higher DPD value. That means the movement of water will occur from cell X to cell Y.