Peptidoglycan is an important component of the cell walls of which type of microbes?

• A. Fungi
• B. Archaea
• C. Bacteria
• D. Viruses

Answer: (C)

Verified step by step guidance

1. Understand that peptidoglycan is a polymer consisting of sugars and amino acids that forms a mesh-like layer outside the plasma membrane of certain microbes.
2. Recall that peptidoglycan is a major structural component of bacterial cell walls, providing rigidity and shape to the bacterial cell.
3. Recognize that fungi have cell walls made primarily of chitin, not peptidoglycan.
4. Know that archaea have cell walls composed of different substances such as pseudopeptidoglycan or other polymers, but not true peptidoglycan.
5. Note that viruses do not have cell walls at all, so they do not contain peptidoglycan.