LIFE SCIENCE

Detailed explanation-1: -Protein is a polymer, made of amino acids, the monomer of protein (i.e. a single amino acid) contain both the groups i.e. amine and carboxylic group in its molecule.

Detailed explanation-2: -Proteins (polymers of  50 amino acids or more) and peptides (shorter polymers) are formed when the amino group of one amino acid monomer reacts with the carboxylate carbon of another amino acid to form an amide linkage, which in protein terminology is a peptide bond.

Detailed explanation-3: -For example, proteins are composed of monomers called amino acids.

Detailed explanation-4: -Since enzymes are proteins, they are composed of monomers known as amino acids.

Detailed explanation-5: -Proteins are polymers; the monomers which make them up are amino acids. Proteins may be used as enzymes, structural molecules, energy storage molecules, transport molecules, hormones, and many other metabolic uses.