What are the building blocks of proteins?

What are the building blocks of proteins?

• A. Amino acid
• B. Monosaccharide
• C. Nucleic acid
• D. Monomer

Answer: (A)

Proteins are polymers formed by linking amino acids. Each amino acid brings a specific side chain and functional groups that allow peptide bonds to form between the amino group of one amino acid and the carboxyl group of the next, creating a polypeptide chain that folds into a functional protein. There are about 20 standard amino acids, and their sequence dictates the protein’s structure and function. Monosaccharides are the building blocks of carbohydrates, not proteins, while nucleic acids are built from nucleotides. The term monomer is a general descriptor for the repeating unit in many polymers, but the precise unit that makes up proteins is the amino acid.

Proteins are polymers formed by linking amino acids. Each amino acid brings a specific side chain and functional groups that allow peptide bonds to form between the amino group of one amino acid and the carboxyl group of the next, creating a polypeptide chain that folds into a functional protein. There are about 20 standard amino acids, and their sequence dictates the protein’s structure and function.

Monosaccharides are the building blocks of carbohydrates, not proteins, while nucleic acids are built from nucleotides. The term monomer is a general descriptor for the repeating unit in many polymers, but the precise unit that makes up proteins is the amino acid.