Question

what polymer structure is made up of amino acids?
hormones
cellulose
proteins

Explanation:

To determine the correct answer, we analyze each option:

• Hormones: Some hormones are proteins (made of amino acids), but not all hormones are polymers of amino acids (e.g., steroid hormones). This is not the best fit.
• Cellulose: It is a polysaccharide made of glucose units, not amino acids.
• Proteins: Proteins are polymers (polypeptides) formed by the linkage of amino acids through peptide bonds. This matches the description of a polymer made of amino acids.

Answer:

proteins (the option labeled "proteins")