Question

The hydrostatic pressure developed in the cell is called as

• A. Turgor pressure
• B. Wall pressure
• C. Osmotic pressure
• D. Suction pressure

Answer 1

Answer: (A)

Turgor pressure

When the cells are placed in a hypotonic solution (higher water potential or dilute solution as compared to the cytoplasm), water diffuses into the cell causing the cytoplasm to build up a pressure against the wall, that is called turgor pressure. The pressure exerted by the protoplasts due to the entry of water against the rigid walls is called as pressure potential. Because of the rigidity of the cell wall, the cell does not rupture. This turgor pressure is ultimately responsible for enlargement.

So, the correct answer is option A.