Bacterial cell wall is composed of peptidoglycan, a complex of oligosaccharides and proteins. The oligosaccharide component consist of _________
A
Linear chain of alternating NAG and NAM linked by α (1 -4) linkage
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B
Linear chains of alternating NAG and NAM linked by β (1-4) linkage.
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C
Linear chain of glucose linked by 4β (1-4) linkage.
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D
Linear chain of glucose linked by α (1-4) linkage
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Solution
The correct option is B Linear chains of alternating NAG and NAM linked by β (1-4) linkage. The oligosaccharide component of bacterial cell wall consists of linear chains of alternating NAG and NAM linked by β (1-4)linkage.