LIFE SCIENCE

Detailed explanation-1: -Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.

Detailed explanation-2: -A peptide bond, also referred to as an amide bond, is formed between the -nitrogen atom of one amino acid and the carbonyl carbon of a second (diagrammed below). So-called isopeptide bonds refer to amide bonds between sidechain amines or carbonyl carbons on the side chain rather than -amine or -carbonyl.

Detailed explanation-3: -Peptide bonds are amide bonds between the -carboxyl group of one amino acid and the -amino group of another (Fig. 3-1). The result is a planar structure that is stabilized by resonance between the -carboxyl and -amino groups.