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Multiple Choice
In the context of proteins, what is the monomeric unit from which proteins are built?
A
A fatty acid
B
A monosaccharide
C
A nucleotide
D
An amino acid
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Verified step by step guidance
1
Understand that proteins are large biomolecules made up of smaller repeating units called monomers.
Recall that the primary monomeric units of proteins are amino acids, which link together via peptide bonds to form polypeptides.
Recognize that fatty acids are monomers for lipids, monosaccharides are monomers for carbohydrates, and nucleotides are monomers for nucleic acids, not proteins.
Identify that the correct monomeric unit for proteins is an amino acid, which contains an amino group, a carboxyl group, a hydrogen atom, and a distinctive side chain attached to a central carbon.
Conclude that proteins are built from amino acids linked in specific sequences, which determine the protein's structure and function.