Question

The real forces responsible for the movement of water from one cell to another cell is mainly

• A. osmotic pressure (OP)
• B. turgor pressure (TP)
• C. diffusion pressure deficit (DPD)
• D. imbibition

Answer 1

Answer: (C)

diffusion pressure deficit (DPD)

Answer 2

The net force with which water is drawn into a cell is equal to difference of $OP$ and TP, known as diffusion pressure deficit or suction pressure. DPD of pure water is maximum $(\approx 1236\, atm )$ solvent moves from cell of low DPD to high DPD. DPD, or $S P=O P-T P$