Question

Explain the structure of cell wall in bacteria and the chemical structure of N-acetyl glucosamine (NAG) andN-acetyl muramic acid(NAM) and linked Together by betta(
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)1- 4linkage you can take the help of the attachment give above.

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Answer 1

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CELL WALL OF BACTERIA :-

★ Bacterial cell wall is made up of mainly PEPTIDOGLYCON

★ Peptido = Amino acid
glycon= Amino sugar

★ Amino sugar are of Two types

1. NAG (found in fungus )

2. NAM (present only in prokaryotes)

★ In Gram +ve bacteria cell wall is single layered and thick . It is made up of PEPTIDOGLYCON . Lipifs are also present but in less quantity.

★ In Gram -ve bacteria cell wall is double layered. Inner layer is thin and composed of PEPTIDOGLYCON while outer layer is thick made up of lipopolysaccharide.


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