Peptidoglycan

Peptidoglycan is a complex, sturdy molecule that forms the cell wall of bacteria. It provides structural support and protection, helping bacteria maintain their shape and resist external pressures. Peptidoglycan consists of sugar chains linked by small, protein-like molecules called peptides, creating a mesh-like structure. This rigid layer is essential for bacterial survival, and many antibiotics target its synthesis to inhibit bacterial growth. In essence, peptidoglycan acts as a resilient armor, giving bacteria their shape and durability in various environments.