A Peptide Bond

A peptide bond

A) is a covalent bond between the carboxyl carbon of one amino acid and the amino nitrogen of a second amino acid.
B) is a covalent bond between the functional R groups of adjacent amino acids.
C) is a covalent bond between the NH group of one polypeptide and the CO group of an adjacent polypeptide that holds together multimeric proteins.
D) is a noncovalent bond that dictates the tertiary structure of a protein.
E) is a covalent bond between adjacent glucose molecules in a peptide.