Plasmolysis occure when cells are kept in

Options

A. Hytotonic solution
B. Hypertonic solution
C. Isotonic solution
D. None of the above

Answer

**Step-by-Step Solution:**

1. **Understanding Plasmolysis**: Plasmolysis is defined as the process in which the protoplasm of a cell shrinks away from the cell wall due to the loss of water. This typically occurs when a cell is placed in a solution that has a higher solute concentration than the fluid inside the cell.

2. **Identifying the Type of Solution**: To determine the conditions under which plasmolysis occurs, we need to identify the type of solution that causes water to leave the cell. The options given are:
- Hypertonic solution
- Hypotonic solution
- Isotonic solution
- None of the above

3. **Analyzing the Solutions**:
- **Hypertonic Solution**: This solution has a higher concentration of solutes compared to the inside of the cell. When cells are placed in a hypertonic solution, water moves out of the cell to balance the solute concentration, leading to plasmolysis.
- **Hypotonic Solution**: This solution has a lower concentration of solutes compared to the inside of the cell. Water would move into the cell, causing it to swell, not shrink.
- **Isotonic Solution**: This solution has an equal concentration of solutes compared to the inside of the cell. There would be no net movement of water, and plasmolysis would not occur.
- **None of the Above**: This option is not applicable since we have already identified the correct condition for plasmolysis.

4. **Conclusion**: Based on the analysis, plasmolysis occurs when cells are kept in a hypertonic solution. Therefore, the correct answer is **hypertonic solution**.

**Final Answer**: Plasmolysis occurs when cells are kept in a **hypertonic solution**.

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