Proteins are formed by linking amino acids into long chains called what?

Proteins are formed by linking amino acids into long chains called what?

• A. Polypeptides
• B. Nucleic acids
• C. Monosaccharides
• D. Lipids

Answer: (A)

Proteins are built by linking amino acids into long chains through peptide bonds. That chain is called a polypeptide, and a protein may consist of one or several polypeptides folded into a functional shape. The other terms refer to different biomolecules: nucleic acids are the DNA/RNA polymers made from nucleotides, monosaccharides are simple sugar units that form carbohydrates, and lipids are fats and oils not built from amino acid chains.

Proteins are built by linking amino acids into long chains through peptide bonds. That chain is called a polypeptide, and a protein may consist of one or several polypeptides folded into a functional shape. The other terms refer to different biomolecules: nucleic acids are the DNA/RNA polymers made from nucleotides, monosaccharides are simple sugar units that form carbohydrates, and lipids are fats and oils not built from amino acid chains.