Answer:
Two amino acids are joined together by losing a water molecule, or hydrolysis.
Explanation:
A peptide bond is formed by binding two or more amino acids. This is a kind of covalent bond, wherein the carboxylic group of one amino acid and an amino group of another amino acid is linked together with a loss of water molecule or hydrolysis during the process. A polypeptide chain is now then composed of multiple peptide bonds, from binding amino acids (also known as residues at this point), with a linear configuration.
A closer look into this process involves the α-amino group as the beginning of the polypeptide series and ending with the α-carboxyl group. This also serves as the primary structure of the protein.
