The Cell Wall of bacterium is made up of

Options

A. Cellulose
B. Hemicellulose
C. Lignin
D. Peptidoglycan

Answer

### Step-by-Step Solution:

1. **Identify the Organism**: The question asks about the cell wall of a bacterium. Bacteria are classified under the kingdom Monera and are unicellular prokaryotic organisms.

2. **Understand the Structure of Bacteria**: Bacteria have a simple cell structure, which is characteristic of prokaryotes. They lack membrane-bound organelles and have a primitive arrangement.

3. **Focus on the Cell Wall**: The cell wall is a crucial component of bacterial cells, providing structural support and protection.

4. **Determine the Composition of the Cell Wall**: The cell wall of bacteria is primarily made up of a substance called peptidoglycan. Peptidoglycan is a polymer consisting of sugars and amino acids, which forms a mesh-like structure.

5. **Evaluate Other Options**: The question may provide multiple-choice options. Common incorrect options might include:
- Cellulose (found in plant cell walls)
- Hemicellulose (also found in plant cell walls)
- Lignin (a complex organic polymer found in the cell walls of plants)

6. **Conclude with the Correct Answer**: The correct answer to the question is that the cell wall of a bacterium is made up of peptidoglycan.