In biochemistry, proteins are polymers built from repeating monomer units. What are the monomers of proteins?

• A. Fatty acids
• B. Nucleotides
• C. Amino acids
• D. Monosaccharides

Answer: (C)

Verified step by step guidance

1. Understand that proteins are biological macromolecules composed of smaller building blocks called monomers.
2. Recall that monomers are the basic units that link together to form polymers; in the case of proteins, these monomers are specific molecules.
3. Identify the common types of biological monomers: fatty acids (for lipids), nucleotides (for nucleic acids), monosaccharides (for carbohydrates), and amino acids (for proteins).
4. Recognize that amino acids are the monomers that polymerize through peptide bonds to form proteins.
5. Conclude that the monomers of proteins are amino acids, which link together in specific sequences to create diverse protein structures.