Two alternating amino sugars, namely N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) make up the
A cell wall is a layer located outside the cell membrane found in plants, fungi, bacteria, algae, and archaea. A peptidoglycan cell wall composed of disaccharides and amino acids gives bacteria structural support. The peptidoglycan layer in the bacterial cell wall is a crystal lattice structure formed from linear chains of two alternating amino sugars, namely N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM).