Question

In which condition the turgor pressure of the cell becomes equal to the osmotic pressure?

• A. In flaccid cell
• B. In plasmolysed cell
• C. In fully tugid cell
• D. It never happens

Answer 1

Answer: (C)

In fully tugid cell

Diffusion pressure deficit (DPD) is same as suction pressure. DPD is calculated as the difference between osmotic pressure (OP) and turgor pressure (TP). The OP is the pressure responsible for the gain of water and turgor pressure is the opposing pressure. In a fully turgid cell, DPD is zero as TP is equal to OP. This means that no more water can enter the cell.

So, the correct answer is option C.