A polypeptide chain is composed of ____.

A) amino acids
B) proteins
C) nucleic acids
D) fatty acids
E) monosaccharides

Polypeptide Chain

A linear organic polymer consisting of a large number of amino acid residues bonded together in a chain, forming part of or the whole of a protein molecule.

Amino Acids

Amino acids are organic compounds that combine to form proteins, serving as the building blocks of life, containing an amino group (-NH2) and a carboxyl group (-COOH).