Bacterial cell wall is mainly composed of :-

Options

A. Cellulose
B. Lipid
C. Peptidoglycon
D. Chitin

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the main component of the bacterial cell wall.

2. **Analyzing the Options**: The options provided include cellulose, lipid, peptide, glycine, and chitin. We need to evaluate these options to find the correct answer.

3. **Eliminating Incorrect Options**:
- **Cellulose**: This is primarily found in the cell walls of plants and fungi, not bacteria. Therefore, it can be eliminated.
- **Lipid**: While lipids are present in cell membranes, they are not the main component of bacterial cell walls. This option can also be eliminated.
- **Chitin**: This is found in the cell walls of fungi, not bacteria. Thus, it can be eliminated.
- **Glycine**: This is an amino acid and while it may be present in some bacterial structures, it is not the primary component of the bacterial cell wall.

4. **Identifying the Correct Component**: The remaining option is **Peptidoglycan**.

5. **Understanding Peptidoglycan**: Peptidoglycan is a polymer that consists of sugars and amino acids. It provides structural integrity and rigidity to the bacterial cell wall. It is composed of two sugar units: N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM).

6. **Conclusion**: Therefore, the main component of the bacterial cell wall is **Peptidoglycan**.

**Final Answer**: Peptidoglycan

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