Question

given that an amino acid is a subunit of a protein, which is true? amino acids are made up of proteins proteins are made up of amino acids

Explanation:

A subunit is a smaller component that makes up a larger structure. If an amino acid is a subunit of a protein, it means that proteins are composed of amino acids. The first statement ("amino acids are made up of proteins") is incorrect because it reverses the relationship. The second statement ("proteins are made up of amino acids") is correct as it aligns with the subunit - whole relationship.

Answer:

proteins are made up of amino acids