Which of the following determines the diffusion of water from one cell to another ?

Options

A. Diffusion pressure deficit
B. Hydrostatic pressure
C. Osmotic pressure
D. Wall pressure

Answer

To determine the diffusion of water from one cell to another, we need to analyze the options provided and understand the mechanisms involved in water movement within plant cells.

### Step-by-Step Solution:

1. **Understanding Water Movement**: Water movement between cells is primarily driven by differences in water potential, which is influenced by factors such as osmotic pressure and turgor pressure.

2. **Defining Key Terms**:
- **Diffusion Pressure Deficit (DPD)**: This is defined as the difference between osmotic pressure and turgor pressure. It indicates the tendency of water to move from one area to another due to osmotic gradients.
- **Hydrostatic Pressure**: This refers to the pressure exerted by a fluid at equilibrium due to gravity. While it can influence water movement, it does not directly cause diffusion between cells.
- **Osmotic Pressure**: This is the pressure required to prevent the flow of water into a solution via osmosis. It drives water movement from areas of lower solute concentration to areas of higher solute concentration.
- **Wall Pressure**: This is the pressure exerted by the cell wall against the internal turgor pressure of the cell. It helps maintain cell shape and prevents bursting but does not directly facilitate water movement between cells.

3. **Analyzing the Options**:
- **Option A: Diffusion Pressure Deficit (DPD)**: This is the correct answer as it directly relates to the movement of water between cells. A higher DPD indicates a greater tendency for water to move into the cell, promoting diffusion.
- **Option B: Hydrostatic Pressure**: While it affects fluid movement, it does not specifically determine the diffusion of water between cells.
- **Option C: Osmotic Pressure**: This influences water movement but is not the direct measure of the tendency for diffusion between cells.
- **Option D: Wall Pressure**: This is important for maintaining cell integrity but does not facilitate water diffusion.

4. **Conclusion**: The correct answer is **Diffusion Pressure Deficit (DPD)**, as it effectively determines the movement of water from one cell to another.

### Final Answer:
The factor that determines the diffusion of water from one cell to another is **Diffusion Pressure Deficit (DPD)**.