If turgidity of a cell surrounded by water increases, the wall pressure will

Options

A. increase
B. Decrease
C. fluctuate
D. remain unchanged

Explanation

To solve the question, "If turgidity of a cell surrounded by water increases, the wall pressure will...," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Turgidity**:
- Turgidity refers to the state of a cell when it is filled with water, causing it to become firm and swollen. This occurs when a cell is placed in a hypotonic solution, where the concentration of solutes outside the cell is lower than inside.

**Hint**: Turgidity is related to the amount of water entering the cell.

2. **Identifying Turgor Pressure**:
- Turgor pressure is the pressure exerted by the fluid (water) inside the cell against the cell wall. It is a result of water entering the cell through osmosis.

**Hint**: Turgor pressure increases with the amount of water entering the cell.

3. **Understanding Wall Pressure**:
- Wall pressure is the pressure exerted by the cell wall in response to the turgor pressure. According to Newton's third law of motion, for every action, there is an equal and opposite reaction.

**Hint**: Wall pressure counteracts turgor pressure.

4. **Analyzing the Relationship**:
- If the turgidity of the cell increases (meaning more water enters the cell), the turgor pressure will also increase. Consequently, the wall pressure must increase as well to counteract the increased turgor pressure.

**Hint**: An increase in turgor pressure leads to an increase in wall pressure.

5. **Conclusion**:
- Therefore, if the turgidity of a cell surrounded by water increases, the wall pressure will also increase.

### Final Answer:
The wall pressure will increase.