The pressure which is responsible for enlargement and extension of cell is

Answer

### Step-by-Step Solution:

1. **Understanding Cell Enlargement**:
- Cells in plants can enlarge and extend due to internal pressure. This is crucial for growth and maintaining the structure of the plant.

2. **Identifying the Type of Pressure**:
- The specific type of pressure responsible for this enlargement is known as turgor pressure.

3. **Defining Turgor Pressure**:
- Turgor pressure is the positive pressure that develops within plant cells when water enters the cell through osmosis. This pressure is a result of the cell's contents pushing against the cell wall.

4. **Mechanism of Turgor Pressure**:
- When water enters the plant cell, it fills the vacuole and pushes the cytoplasm against the cell wall. This creates a hydrostatic pressure that keeps the cell firm and helps it maintain its shape.

5. **Importance of Turgor Pressure**:
- Turgor pressure is essential for the proper functioning of plant cells and their organelles. It provides support to non-woody tissues, such as parenchyma, and is vital for cell enlargement and extension during growth.

6. **Conclusion**:
- Therefore, the pressure responsible for the enlargement and extension of a cell is called turgor pressure.

### Final Answer:
The pressure responsible for the enlargement and extension of a cell is called **turgor pressure**.

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