Question

Turgidity of the cell is maintained by:

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

Answer 1

The correct option is B

Turgor pressure

The correct answer is B:

Explanation of the correct answer:

Turgor pressure:

1. This hydrostatic pressure is the pressure that the cytoplasm and the cellular contents apply against the cell wall.
2. This pressure is named turgor pressure.
3. Turgor is generated through an osmotically driven inflow of water into cells across a plasma membrane.
4. It gives turgidity to the cell.

Explanation of the incorrect answers:

Option A: Wall pressure is the pressure applied by the wall to the contents of the cell.

Option C: The external pressure that must be applied against the flow of osmosis in order to halt the process is called osmotic pressure.

Option D: The potential pressure difference between the high concentration to the low concentration is called the diffusion pressure.

Final Answer: The turgidity of the cell is maintained by turgor pressure.