Turgidity of cell is maintained by

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding Turgidity**: Turgidity refers to the state of being swollen or firm due to the presence of water in the cell. It is a crucial aspect of plant cell structure, helping maintain their shape and function.

2. **Identifying the Mechanism**: The turgidity of a cell is primarily maintained by internal pressure. This pressure is essential for keeping the cell firm and preventing wilting.

3. **Osmotic Pressure**: One of the key factors that contribute to turgidity is osmotic pressure. This pressure results from the movement of water across a semi-permeable membrane, balancing the concentration of solutes inside and outside the cell.

4. **Turgor Pressure**: Among the various pressures, turgor pressure is the specific pressure that directly maintains the turgidity of the cell. It is generated by the fluid (usually water) inside the vacuole pushing against the cell wall.

5. **Role of Cell Wall**: The cell wall provides structural support, and when turgor pressure builds up, it keeps the plasma membrane pressed against the cell wall, maintaining the cell's shape and preventing it from collapsing.

6. **Conclusion**: Therefore, the turgidity of the cell is primarily maintained by turgor pressure, which is a result of the osmotic pressure of water inside the cell.

**Final Answer**: Turgidity of the cell is maintained by turgor pressure.

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