In which condition the Turgor pressure of the cell becomes equal to the osmotic pressure :–

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding Turgor Pressure and Osmotic Pressure:**
- Turgor pressure is the pressure exerted by the fluid inside the cell against the cell wall.
- Osmotic pressure is the pressure required to prevent the flow of water into the cell due to osmosis.

2. **Conditions of the Cell:**
- When a cell is placed in a hypotonic solution, water enters the cell, causing it to swell and become turgid.
- A fully turgid cell is one that has absorbed as much water as it can without bursting.

3. **Equilibrium of Pressures:**
- In a fully turgid cell, the turgor pressure becomes equal to the osmotic pressure.
- At this point, the diffusion pressure deficit (DPD) or suction pressure is zero, indicating that there is no net movement of water into the cell.

4. **Identifying the Correct Condition:**
- The question asks for the condition when turgor pressure equals osmotic pressure.
- This occurs specifically when the cell is fully turgid.

5. **Conclusion:**
- Therefore, the condition in which the turgor pressure of the cell becomes equal to the osmotic pressure is when the cell is fully turgid.

**Final Answer:**
The turgor pressure of the cell becomes equal to the osmotic pressure when the cell is fully turgid.

---