Write the role of pressure potential, turgor pressure and wall pressure for turgidity of plant cell.

Explanation

1. Pressure potential is a mechanical force for working against the effect of solute potential.
2. Increased pressure potential will increase water potential and water enters the cell which becomes turgid.
3. This positive hydrostatic pressure within the cell is called Turgor pressure.
4. In Turgor pressure (TP) the cell membrane exerts pressure towards the cell wall. The cell wall reacts to this Turgor pressure with equal and opposite force.
5. The counter pressure exerted by the cell wall towards cell membrane is wall pressure.
6. Turgar pressure and wall pressure make the cell fully turgid. TP + WP = Turgid.