Question

enzymes, such as the one shown in the picture, work by fitting onto the substrate molecule. enzyme function by progress learning chemically speaking, enzymes are composed of chains of and they are considered to be a type of a nucleotides, nucleic acid b fatty acids, lipid c monosaccharides, carbohydrate d amino acids, protein

Explanation:

Enzymes are proteins. Proteins are composed of amino - acid chains. Amino acids are the building blocks of proteins.

Answer:

D. amino acids, protein