Question

Mucopeptide is abundant in the cell wall of

• A. Cyanobacteria
• B. Gram $(+)$ bacteria
• C. Gram $(-)$ bacteria
• D. Bacteriophage

Answer 1

Answer: (B)

Gram $(+)$ bacteria

Both Gram negative and Gram positive bacteria have a peptidoglycan layer in the cell wall. It is also called as mucopeptide or murein. However, Gram positive bacteria have thick layer of peptidoglycan. Hence, mucopeptide is abundant in the cell wall of gram positive bacteria. Gram negative bacteria have thin layer of mucopeptide. Apart from this, Gram negative bacteria have outer wall made up of lipopolysaccharide.

Thus, the correct answer is 'Gram (+) bacteria.'