The peptidoglycan of bacterial cell walls contains a carbohydrate matrix linked together by short chains of: amino acids.
The bacterial cell wall is a strong, firm, thoroughly cross-linked polymer made up of of polysaccharide chains containing peptide cross-linkages, therefore, called as peptidoglycan which is crucial for bacteria to regulate their shape and helps them to survive vast alterations in osmotic pressure.
Peptidoglycan is also known as murein, is a huge polymer comprising of interlinking chains of similar peptidoglycan monomer units.
A single peptidoglycan monomer unit contains two linked amino sugars i.e. N-acetylglucosamine (NAG) as well as N-acetylmuramic acid (NAM), with a pentapeptide coming off of the NAM.
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