Which of the following forms slime layer?

Options

A. Cell wall
B. Mesosome
C. Glycocalyx
D. S layer

Answer

To determine which of the following forms a slime layer, we can analyze each option provided in the question:

1. **Cell Wall**: The cell wall is a rigid structure that provides support and protection to the cell. It is not involved in forming a slime layer.

2. **Mesosome**: Mesosomes are infoldings of the plasma membrane in bacteria. They are not related to the formation of a slime layer.

3. **Glycocalyx**: The glycocalyx is a term that refers to a sticky layer of polysaccharides that surrounds the cell membrane of some bacteria. It can be organized into a capsule or can be unorganized, forming a slime layer. The slime layer is easily removable and is considered a subset of the glycocalyx.

4. **S-layer**: The S-layer is a crystalline layer of protein that can be found on the surface of some bacteria. It does not form a slime layer.

Based on this analysis, the correct answer is **Glycocalyx**, as it is the component that forms the slime layer in bacteria.

### Step-by-Step Solution:
1. **Identify the options**: We have four options to consider: Cell wall, Mesosome, Glycocalyx, and S-layer.

2. **Analyze each option**:
- **Cell Wall**: Provides structure, does not form slime layer.
- **Mesosome**: Involved in cellular processes, not in slime layer formation.
- **Glycocalyx**: Can form slime layer, which is unorganized and removable.
- **S-layer**: A protein layer, does not form slime layer.

3. **Conclusion**: The slime layer is formed by the **Glycocalyx**.

### Final Answer:
The correct option that forms a slime layer is **Glycocalyx**.