Question

which of the following is a correct monomer/polymer pairing?
○ monosaccharide/polypeptide
○ amino acid/polysaccharide
○ amino acid/polypeptide
○ glycerol/triglyceride

Explanation:

• Analyze each option:
• Monosaccharides are monomers of polysaccharides, not polypeptides. So "monosaccharide/polypeptide" is incorrect.
• Amino acids are monomers of polypeptides (proteins), while polysaccharides are made of monosaccharides. So "amino acid/polysaccharide" is incorrect.
• Amino acids link together via peptide bonds to form polypeptides (a type of polymer), so "amino acid/polypeptide" is a correct monomer - polymer pairing.
• Triglycerides are formed from glycerol and fatty acids, but triglycerides are not polymers (polymers are made of repeating monomers in a chain - like structure, and triglycerides have a different structure with one glycerol and three fatty acids). So "glycerol/triglyceride" is incorrect.

Answer:

C. amino acid/polypeptide (assuming the options are labeled A, B, C, D with C being amino acid/polypeptide as per the third option)