Identify incorrect statement of the following

Options

A. When a cell is kept in isotonic solution, the net movement of water between the two systems becomes zero
B. The process of plasmolysis is irreversible
C. When a cell is kept in hypotonic solution, turgor pressure increases
D. When a cell is kept in hypertonic solution, exosmosis occurs

Answer

To identify the incorrect statement from the provided options, we will analyze each statement step by step.

### Step-by-Step Solution:

1. **Understanding Isotonic Solutions**:
- When a cell is placed in an isotonic solution, the concentration of solutes outside the cell is equal to the concentration of solutes inside the cell. This results in no net movement of water, meaning the amount of water entering the cell is equal to the amount of water leaving the cell.
- **Conclusion**: This statement is true.

2. **Analyzing Plasmolysis**:
- Plasmolysis refers to the process where a plant cell's cytoplasm shrinks away from the cell wall due to water loss when placed in a hypertonic solution. The statement claims that the process of plasmolysis is irreversible.
- However, plasmolysis can be reversed if the cell is placed back in a hypotonic solution, allowing water to re-enter the cell and restore its original shape.
- **Conclusion**: This statement is incorrect.

3. **Examining Hypotonic Solutions**:
- In a hypotonic solution, the concentration of solutes is lower outside the cell than inside, leading to water entering the cell. This influx of water increases turgor pressure, which is the pressure exerted by the fluid inside the cell against the cell wall.
- **Conclusion**: This statement is true.

4. **Reviewing Hypertonic Solutions**:
- In a hypertonic solution, water moves out of the cell, leading to exosmosis. This process causes the cell to lose water and shrink.
- **Conclusion**: This statement is true.

### Final Answer:
The incorrect statement is: **"The process of plasmolysis is irreversible."**