Monomers of Carbohydrates and Proteins

Steps:

• Glycogen is a carbohydrate polymer, broken down into its monomer glucose.
• Proteins are polypeptides, composed of linked amino acid monomers.
• The question asks for the basic units of both, so identify the pair: glucose for glycogen, amino acids for protein.
• Compare options to find the matching sequence.

Why C is correct:

• Glycogen is a polysaccharide defined as a polymer of glucose units; proteins are polymers of amino acids, per biochemical definitions.

Why the others are wrong:

• A: Lists amino acids first (for protein) but glucose second, reversing the order for glycogen and protein.
• B: Fatty acids are monomers of lipids, not glycogen or protein.
• D: Fatty acids relate to lipids, not proteins; glucose is correct for glycogen but mismatched.

Final answer: C