Which arbitrary values of DPD, OP and TP appear correct for a turgid cell?

Options

A. DPD 02 atm , OP 07 atm , TP 5 atm
B. DPD 00 atm , OP 15 atm , TP 15 atm
C. DPD 10 atm , OP 15 atm , TP 6 atm
D. DPD 05 atm , OP 12 atm , TP 7 atm

Answer

To determine the arbitrary values of Diffusion Pressure Deficit (DPD), Osmotic Pressure (OP), and Turgor Pressure (TP) for a turgid cell, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Definitions**:
- **Osmotic Pressure (OP)**: The pressure required to prevent the flow of water into a solution via osmosis. It is a measure of the tendency of water to move into a cell.
- **Turgor Pressure (TP)**: The pressure exerted by the fluid (water) inside the cell against the cell wall. It helps maintain the cell's structure and prevents wilting.
- **Diffusion Pressure Deficit (DPD)**: The difference between the osmotic pressure and the turgor pressure. It indicates the potential for water to move into the cell.

2. **Conditions of a Turgid Cell**:
- In a turgid cell, the cell has absorbed a significant amount of water, leading to an increase in turgor pressure.
- At full turgidity, the turgor pressure (TP) is equal to the osmotic pressure (OP). This means that the cell is full of water and the cell wall is pushing back against the internal pressure.

3. **Analyzing the Values**:
- Since the turgor pressure (TP) equals the osmotic pressure (OP) in a turgid cell, we can express this as:
\[ TP = OP \]
- The diffusion pressure deficit (DPD) is calculated as:
\[ DPD = OP - TP \]
- Given that TP = OP in a turgid cell, we can conclude that:
\[ DPD = OP - OP = 0 \]

4. **Conclusion**:
- For a turgid cell:
- DPD = 0
- OP = TP (both values are equal)
- Therefore, the correct arbitrary values for a turgid cell can be summarized as:
- DPD = 0
- OP = TP (any equal positive value, e.g., 10, 10)