The non living layer forming the outer covering of fungal cells is

Options

A. cell wall
B. cell membrane
C. tonoplast
D. capsid

Answer

To answer the question, "The non-living layer forming the outer covering of fungal cells is," we will analyze the options provided and determine the correct answer step by step.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Cell wall
- Cell membrane
- Tonoplast
- Capsid

2. **Understand the Function of Each Option**:
- **Cell Wall**: This is a non-living, rigid structure that provides support and protection to the cell. It is found in plants and fungi.
- **Cell Membrane**: This is a living, semi-permeable membrane that surrounds the cell, controlling the movement of substances in and out.
- **Tonoplast**: This is the membrane surrounding the vacuole in plant cells, not specifically related to fungi.
- **Capsid**: This is a protein coat that surrounds the genetic material of viruses, not applicable to fungal cells.

3. **Focus on Fungal Cells**: Fungi have a specific structure that is crucial for their integrity and protection. The cell wall is particularly important in fungi.

4. **Composition of the Fungal Cell Wall**: The cell wall of fungi is primarily composed of chitin, which is a strong and flexible polysaccharide. This distinguishes it from plant cell walls, which are made of cellulose.

5. **Conclusion**: Since the question asks for the non-living layer that forms the outer covering of fungal cells, and considering the definitions and functions of the options, the correct answer is **Cell Wall**.

### Final Answer:
The non-living layer forming the outer covering of fungal cells is **Cell Wall**.