Question

The cell wall of fungi and bacteria contain

• A. N-acetyl glucosamine
• B. Glucosamine
• C. Mannose
• D. Cellulose

Answer 1

Answer: (A)

N-acetyl glucosamine

The cell wall of fungus is made up of fungal cellulose and cell wall of bacteria is made up of peptidoglycans. Fungal cellulose or chitin microfibrils are made up of bundles of unbranched chains of $\beta$-1, 4 acetyl glucosamine residues. Peptidoglycans are the structural elements of almost all the bacterial cell walls. Peptidoglycans are made up of a polysaccharide backbone consisting of alternating muramic acid and acetylated glucosamine residues in equal amounts.