Question

N-acetyl muramic acid is found in

• A. Cell wall of plants
• B. Cell wall of bacteria
• C. Cell wall of fungi
• D. Viral coat

Answer 1

The correct option is B Cell wall of bacteria

• The cell wall of gram-negative bacteria is made up of a thin layer of peptidoglycan which is also known as murein.
  
• N-Acetylmuramic acid or MurNAc is the ether of lactic acid and N-acetylglucosamine.
• It is present in the bacterial cell wall (is a biopolymer) which is formed by the cross-linking of alternating units of N-acetylglucosamine and N-acetylmuramic acid.
  
• So, the correct answer is 'Cell wall of bacteria'.