The space between plasma membrane and cell wall of a plasmolysed cell surrounded by a hypertonic solution is occupied by

Options

A. Isotonic solution
B. Hypotonic solution
C. Hypertonic solution
D. Water

Answer

### Step-by-Step Solution:

1. **Understanding Plasmolysis**:
- Plasmolysis occurs when a plant cell is placed in a hypertonic solution. In this situation, water moves out of the cell, causing the protoplasm (the living part of the cell) to shrink away from the cell wall.

2. **Identifying the Cell Structure**:
- In a plant cell, the cell wall is rigid and fully permeable, while the plasma membrane is selectively permeable. When the protoplasm shrinks, a space forms between the plasma membrane and the cell wall.

3. **Effect of Hypertonic Solution**:
- A hypertonic solution has a higher concentration of solutes compared to the inside of the cell. This causes water to exit the cell, leading to the shrinking of the protoplasm.

4. **Filling of the Space**:
- The space that forms between the plasma membrane and the cell wall after plasmolysis is filled with the hypertonic solution that the cell was placed in. This is because the cell wall does not prevent the movement of water and solutes.

5. **Conclusion**:
- Therefore, the space between the plasma membrane and the cell wall of a plasmolysed cell surrounded by a hypertonic solution is occupied by the hypertonic solution itself.

### Final Answer:
The space between the plasma membrane and the cell wall of a plasmolysed cell surrounded by a hypertonic solution is occupied by a hypertonic solution.

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