Choose the wrong statemnt

Options

A. Cells swell in hypertonic solutions and shrink in hypotonic solution
B. Water potential is the kinetic energy of water which helps in movement of water
C. Absorption of water by seeds and dry wood takes place by special type if duffusion celled imbibtion
D. `Psi_(s)`is always negative

Answer

### Step-by-Step Solution:

1. **Understanding the Terms**:
- **Hypertonic Solution**: A solution that has a higher concentration of solutes compared to another solution.
- **Hypotonic Solution**: A solution that has a lower concentration of solutes compared to another solution.
- **Isotonic Solution**: A solution that has the same concentration of solutes as another solution.

2. **Analyzing the Statements**:
- **Statement 1**: "Cells swell in hypertonic solution and shrink in hypertonic solution."
- This statement is incorrect because cells actually shrink in hypertonic solutions (where the concentration of solutes outside the cell is higher than inside), and swell in hypotonic solutions (where the concentration of solutes outside the cell is lower than inside).

- **Statement 2**: "Water potential is the kinetic energy of water which helps in the movement of water."
- This statement is misleading. Water potential is a measure of the potential energy in water and its ability to perform work. It is not solely the kinetic energy of water.

- **Statement 3**: "Absorption of water by seeds and dry wood takes place by a special type of diffusion."
- This statement is generally correct. Water absorption in seeds and dry wood can occur through osmosis and diffusion.

- **Statement 4**: "Water potential is always negative."
- This statement is partially correct. Water potential can be negative in certain conditions (especially in solutions), but it can also be zero or positive in pure water.

3. **Conclusion**:
- The first statement is the wrong statement as it incorrectly describes the behavior of cells in hypertonic solutions.

### Final Answer:
The wrong statement is: **"Cells swell in hypertonic solution and shrink in hypertonic solution."**

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