First slide

Nature of Bond Linking Monomers in a Polymer

Question

The bonds present in between amino acids in a polypeptide chain and monomers in a polysaccharide are:

Easy

A

Peptide bond and Glycosidic bond respectively
B

Glycosidic bond and peptide bond respectively
C

Ester bond and disulphide bond respectively
D

Peptide bond and phosphodiester bond respectively

Solution

In a polypeptide or a protein, amino acids are linked by a peptide bond which is formed when the carboxyl (-COOH) group of one amino acid reacts with the amino $(- {NH}_{2})$ group of the next amino acid with the elimination of a water moiety. In a polysaccharide the individual monosaccharides are linked by a glycosidic bond. This bond is also formed by dehydration.

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