The pressure that develps in roots due to the metabolic activities of living cells is

Options

A. Turgor pressure
B. Osmotic pressure
C. Root pressure
D. Diffusion pressure

Answer

To solve the question, "The pressure that develops in roots due to the metabolic activities of living cells is," we will analyze each of the provided options step by step.

### Step-by-Step Solution:

1. **Understanding Turgor Pressure**:
- Turgor pressure is the pressure exerted by the fluid (usually water) inside the central vacuole of a plant cell against the cell wall. It is crucial for maintaining cell rigidity and structure.
- **Conclusion**: Turgor pressure is not the correct answer as it does not specifically refer to the pressure generated in roots due to metabolic activities.

2. **Understanding Osmotic Pressure**:
- Osmotic pressure refers to the pressure required to prevent the flow of water into a solution through a semipermeable membrane. It is related to the concentration of solutes in the solution.
- **Conclusion**: Osmotic pressure is also not the correct answer as it does not specifically describe the pressure generated in roots.

3. **Understanding Root Pressure**:
- Root pressure is the pressure that develops in the roots of plants due to the active transport of ions and minerals from the soil into the root cells. This process is driven by the metabolic activities of living cells in the roots.
- Root pressure helps in pushing water and nutrients upward through the plant.
- **Conclusion**: Root pressure is indeed the correct answer as it directly relates to the pressure generated in the roots due to metabolic activities.

4. **Understanding Diffusion Pressure**:
- Diffusion pressure refers to the tendency of molecules to move from an area of higher concentration to an area of lower concentration. It is a general concept related to the movement of substances but does not specifically pertain to the pressure in roots.
- **Conclusion**: Diffusion pressure is not the correct answer as it does not describe the pressure in roots.

### Final Answer:
The correct answer is **root pressure** (option 3), as it is the pressure that develops in roots due to the metabolic activities of living cells.

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