Cell A with OP = 6 and WP = 5 is surrounded by the cells with OP = 3 and TP = 2 , what will be the direction of water movement ?

Options

A. From A to other cells
B. From other cells to A
C. No movement
D. Water will move up

Answer

To determine the direction of water movement between Cell A and the surrounding cells, we need to calculate the Diffusion Pressure Deficit (DPD) for both Cell A and the surrounding cells.

### Step-by-Step Solution:

1. **Understand the Definitions:**
- **Osmotic Pressure (OP):** The pressure required to prevent the flow of water across a semipermeable membrane.
- **Turgor Pressure (TP):** The pressure exerted by the fluid (water) inside the cell against the cell wall.
- **Diffusion Pressure Deficit (DPD):** It is calculated as DPD = OP - TP.

2. **Calculate DPD for Cell A:**
- Given:
- OP of Cell A = 6
- TP of Cell A = 5
- Calculation:
- DPD of Cell A = OP - TP = 6 - 5 = 1

3. **Calculate DPD for Surrounding Cells:**
- Given:
- OP of surrounding cells = 3
- TP of surrounding cells = 2
- Calculation:
- DPD of surrounding cells = OP - TP = 3 - 2 = 1

4. **Compare DPD Values:**
- DPD of Cell A = 1
- DPD of surrounding cells = 1
- Since both DPD values are equal, there is no net movement of water.

5. **Conclusion:**
- Since the DPD values are the same, there will be no movement of water between Cell A and the surrounding cells.

### Final Answer:
- The direction of water movement is **NO MOVEMENT**.