Which monomer forms the links in proteins?

Which monomer forms the links in proteins?

• A. Amino acids
• B. Glucose
• C. Vinyl chloride
• D. Ethylene

Answer: (A)

Proteins are built by joining small units called amino acids. The links between these units are peptide bonds, formed when the amino group of one amino acid reacts with the carboxyl group of the next, releasing a molecule of water in a dehydration synthesis reaction. This creates a chain called a polypeptide, which then folds into a functional protein. Glucose forms carbohydrate chains via glycosidic bonds, not peptide bonds. Vinyl chloride and ethylene are used as monomers in plastics, not in biological proteins. So the monomer that forms the links in proteins is amino acids.

Proteins are built by joining small units called amino acids. The links between these units are peptide bonds, formed when the amino group of one amino acid reacts with the carboxyl group of the next, releasing a molecule of water in a dehydration synthesis reaction. This creates a chain called a polypeptide, which then folds into a functional protein. Glucose forms carbohydrate chains via glycosidic bonds, not peptide bonds. Vinyl chloride and ethylene are used as monomers in plastics, not in biological proteins. So the monomer that forms the links in proteins is amino acids.