Chemical stages of a Protein: A:

As indicated by its name, an amino acid has a chemical structure that combines both acid and base (amino) factors. This important structure gives amino acids a unique buffering capacity. This acid-base nature of amino acids also enables them to join one another to form the characteristic chain structure of protein. The amino (base) group of one amino acid joins the acid (carboxyl) group of another. This characteristic chain structure of amino acids is called a peptide linkage. Long chains of amino acids that are linked in this manner are called polypeptides.