Cell wall is present in only in the plant cell. The main function of the cell wall is to

Options

A. protect the cell
B. control celular activities
C. carry out photosynthesis
D. perform cellular respiration

Answer

### Step-by-Step Solution:

1. **Understanding the Cell Wall**: The cell wall is a rigid outer layer found in plant cells, which provides structure and protection. It is not present in animal cells.

2. **Identifying the Functions of the Cell Wall**: The main functions of the cell wall include:
- Providing structural support to the cell.
- Protecting the cell from mechanical stress and pathogens.
- Regulating the movement of substances in and out of the cell.

3. **Analyzing the Options Given**:
- **Option A: Protect the cell**: This is a primary function of the cell wall, as it acts as a barrier against physical damage and pathogens.
- **Option B: Control cellular activities**: This function is primarily managed by the nucleus, not the cell wall.
- **Option C: Carry out photosynthesis**: Photosynthesis occurs in chloroplasts, not the cell wall.
- **Option D: Perform cellular respiration**: Cellular respiration is carried out by mitochondria, not the cell wall.

4. **Conclusion**: Based on the analysis of the options, the correct answer is **Option A: Protect the cell**. The main function of the cell wall is to provide protection and support to the plant cell.