Question

which is the monomer or buiding block of a protein?
□ nucleotides
□ glucose
□ amino acids
□ glycerol + 3 fatty acids

Explanation:

Proteins are polymers made up of amino - acid monomers. Nucleotides are the building blocks of nucleic acids, glucose is a monomer of carbohydrates like starch and cellulose, and glycerol + 3 fatty acids form fats.

Answer:

amino acids