N-acetyl muramic acid is found as

Options

A. Cell wall of plants
B. Cell wall of bacteria
C. Cell wall of fungi
D. Viral coat

Answer

**Step-by-Step Solution:**

1. **Understanding N-acetyl muramic acid**: N-acetyl muramic acid is a component that is part of a larger structure known as peptidoglycan.

2. **Identifying the location of N-acetyl muramic acid**: Peptidoglycan is primarily found in the cell walls of bacteria. It is a polymer that provides structural support to bacterial cells.

3. **Comparing with other options**:
- The cell wall of plants is composed of cellulose, which does not contain N-acetyl muramic acid.
- The cell wall of fungi is made up of chitin, which also does not include N-acetyl muramic acid.
- The viral coat is primarily made of proteins and does not contain N-acetyl muramic acid.

4. **Conclusion**: Since N-acetyl muramic acid is specifically found in the peptidoglycan layer of bacterial cell walls, the correct answer to the question is that N-acetyl muramic acid is found in the cell wall of bacteria.

**Final Answer**: N-acetyl muramic acid is found as part of the cell wall of bacteria.

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