Osmotic pressure in a vacuolated plant cell is
(a) Equal to W.P.
(b) Equal to T.P.
(c) More than D.P.D.
(d) Less than D.P.D.

Options

A. Equal to W.P.
B. Equal to T.P.
C. More than D.P.D.
D. Less then D.P.D.

Answer

To determine the osmotic pressure in a vacuolated plant cell, we need to understand a few key concepts related to the terms used in the question:

1. **Osmotic Pressure (OP)**: This is 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 solution.

2. **Water Potential (WP)**: This is the potential energy of water in a system compared to pure water, and it is influenced by both solute potential and pressure potential.

3. **Turgor Pressure (TP)**: This is the pressure exerted by the fluid (usually water) in the vacuole against the cell wall, which helps maintain the cell's structure.

4. **Diffusion Pressure Deficit (DPD)**: This is the difference between the osmotic pressure of the solution and the actual pressure in the cell. It indicates how much water is needed to reach equilibrium.

Now, let's analyze the options given in the question:

### Step-by-Step Solution:

1. **Understanding Vacuolated Plant Cells**:
- Vacuolated plant cells contain large vacuoles filled with cell sap. These vacuoles play a crucial role in maintaining turgor pressure and osmotic balance.

2. **Relationship Between OP, TP, and DPD**:
- In a vacuolated plant cell, the osmotic pressure (OP) is responsible for drawing water into the vacuole, which increases turgor pressure (TP).
- The relationship between these pressures can be summarized as:
- DPD = OP - TP
- If the cell is healthy and turgid, the osmotic pressure is typically greater than the turgor pressure.

3. **Analyzing Each Option**:
- **(a) Equal to W.P.**: This is incorrect because osmotic pressure is a component of water potential, but they are not equal.
- **(b) Equal to T.P.**: This is also incorrect because osmotic pressure is generally greater than turgor pressure in a healthy vacuolated cell.
- **(c) More than D.P.D.**: This is correct. As the osmotic pressure is the driving force for water movement into the vacuole, it is indeed greater than the diffusion pressure deficit.
- **(d) Less than D.P.D.**: This is incorrect because it contradicts the relationship established between OP and DPD.

4. **Conclusion**:
- The correct answer is **(c) More than D.P.D.** This indicates that in a vacuolated plant cell, the osmotic pressure is greater than the diffusion pressure deficit.