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Question

Which among the following is a heteropolysaccharide?

A
Peptidoglycan
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B
Starch
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C
Inulin
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D
Chitin
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Solution

The correct option is A Peptidoglycan
Polysaccharides which have the same repeating units are called homopolysaccharides. Starch and cellulose are homopolysaccharides formed of repeating units of glucose joined together by a glycosidic bond. Chitin is a homopolymer of N-acetylglucosamine while inulin is a homopolymer of fructose.

Heteropolysaccharides are polymers made of more than one type of repeating units. An example is peptidoglycan. It is a polymer made of repeating units of N-acetylglucosamine and N-acetyl muramic acid.

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