The plant cells can be lysed by using…….... enzyme.

Options

A. lipase
B. chitinase
C. ligase
D. cellulase

Explanation

To answer the question "The plant cells can be lysed by using…….... enzyme," we need to identify the correct enzyme that can break down the components of plant cells, specifically the cell wall.

### Step-by-Step Solution:

1. **Understanding Plant Cell Structure**:
- Plant cells have a rigid cell wall primarily composed of cellulose. This structure provides support and protection to the cell.

2. **Identifying the Enzymes**:
- The question provides four options: lipase, chitinase, ligase, and cellulase. We need to analyze each enzyme to determine which one can lyse plant cells.

3. **Evaluating Each Option**:
- **Lipase**: This enzyme breaks down lipids (fats) and is not involved in the breakdown of plant cell walls. Therefore, it is not the correct answer.
- **Chitinase**: This enzyme breaks down chitin, which is found in the cell walls of fungi and the exoskeletons of arthropods, not in plants. Hence, it is also not the correct answer.
- **Ligase**: This enzyme is involved in joining DNA fragments together and does not play a role in lysing plant cells. Thus, it is incorrect.
- **Cellulase**: This enzyme specifically breaks down cellulose, the main component of the plant cell wall. Therefore, it is the correct answer.

4. **Conclusion**:
- The enzyme that can lyse plant cells is **cellulase** because it catalyzes the breakdown of cellulose, which is essential for the integrity of the plant cell wall.

### Final Answer:
The plant cells can be lysed by using **cellulase** enzyme.