In biochemistry, what are the fundamental building blocks (monomers) that make up proteins?

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

Answer: (A)

Verified step by step guidance

1. Understand that proteins are large biomolecules composed of smaller units called monomers.
2. Recall that the monomers of proteins are amino acids, which link together via peptide bonds to form polypeptides.
3. Recognize that monosaccharides are the monomers of carbohydrates, not proteins.
4. Know that fatty acids and glycerol are the building blocks of lipids, not proteins.
5. Identify that nucleotides are the monomers of nucleic acids like DNA and RNA, not proteins.