A series of amino acids is called a:

A) peptide bond.
B) polypeptide chain.
C) carboxyl group.
D) side group.

Polypeptide Chain

A long series of amino acids linked by peptide bonds, forming part of the structure of proteins.

Peptide Bond

A chemical bond formed between two amino acids during protein synthesis, characterized by the linkage of a carboxyl group of one amino acid to the amino group of another.

Amino Acids

Organic compounds that serve as the building blocks of proteins, essential for various bodily functions including tissue repair and nutrient absorption.