SSC CHSL 2024 PYQ — Question 39

The correct answer is option 1 i.e. peptidoglycan.

• The cell wall of bacteria is primarily made up of peptidoglycan, a complex polymer consisting of sugars and amino acids.
• Peptidoglycan provides structural support to the bacterial cell, protecting it from external pressure and preventing it from bursting.
• It is found in most bacteria, though its composition and structure can vary between different species. In Gram-positive bacteria, peptidoglycan forms a thick layer, while in Gram-negative bacteria, it is thinner and located between two membranes, contributing to differences in staining and antibiotic resistance.