A leaf peeling of Tradescantia is kept in a medium having 10% NaCl. After a few minutes if we observe the leaf peel under the microscope, we are likely to see

Options

A. Entry of water into the cell
B. The cell bursting out
C. Diffusion of NaCl into the cell
D. Exit of water from the cell

Answer

To solve the question regarding the observation of a leaf peeling of Tradescantia kept in a medium with 10% NaCl, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Environment**:
- The leaf peel of Tradescantia is placed in a solution containing 10% NaCl. This solution is hypertonic compared to the internal environment of the plant cells.

2. **Effect of Hypertonic Solution**:
- In a hypertonic solution, the concentration of solutes (in this case, NaCl) outside the cell is higher than that inside the cell. This causes water to move out of the cells to balance the solute concentration.

3. **Process of Osmosis**:
- Osmosis is the movement of water across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration. Here, water will exit the plant cells.

4. **Cell Response**:
- As water leaves the cells, the cells will lose turgor pressure and begin to shrink. This phenomenon is known as plasmolysis.

5. **Microscopic Observation**:
- Under the microscope, after a few minutes in the 10% NaCl solution, we are likely to observe that the cells of the leaf peel appear shriveled and the cell membrane may pull away from the cell wall.

### Conclusion:
When observing the leaf peel under the microscope after being placed in a 10% NaCl solution, we are likely to see the cells shrink due to the exit of water, indicating a hypertonic condition.

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