BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Proteins are polymers made of chains of amino acids that are bound together by peptide bonds. Therefore, the monomer subunits that proteins are broken down into are amino acids.

Detailed explanation-2: -Amino acids are the monomers that make up proteins.

Detailed explanation-3: -Amino acids do not have single monomers. They are basic compounds bound to the same molecule, with an amino group and a group of carboxylic acids. Instead, amino acids are monomers of proteins, long chains of amino acids that are bound together by amide bonds.