What forms the cell walls of bacteria?

Answer by  HH (404)

The cell wall of eubacteria is formed by peptidoglycan (or murein), a polymer of N-acetylmuramic acid and N-acetylglucosamine. The polymer strands are cross-linked by a 4 amino acid peptide.

Answer by  Irene (104)

Peptidoglycan makes up bacterial cell walls. It is a substance which is composed of sugars and amino acids. The cell wall of bacteria lies outside their plasma membrane and can vary in thickness. The Gram test is used to determine the structure of the cell wall. Gram-negative bacteria have a thinner peptidoglycan layer than Gram-positive bacteria.