Question

What is meant by peptidoglycan?

Answer 1

Peptidoglycan:

1. It is a polymer of sugar and amino acids.
2. Formed by the repeating units of N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM).
3. It helps in the formation of the cell walls of many bacteria.
4. The cell wall of Gram-positive bacteria is composed of thick peptidoglycan layers.
5. The cell wall of Gram-negative bacteria is composed of thin peptidoglycan layers.