IGNOU BBCCT 101 2026 - Describe peptide bond formation and the levels of protein st

Question

Describe peptide bond formation and the levels of protein structure.

10 Feb 2026

Answer :

Word Count : 250

A peptide bond is a covalent bond formed between two amino acids during protein synthesis. It is created by a condensation reaction between the carboxyl group (–COOH) of one amino acid and the amino group (–NH₂) of another. During this reaction, a molecule of water (H₂O) is released, and a bond called the peptide linkage (–CO–NH–) is formed. This process occurs repeatedly, linking many amino acids together to form a polypeptide chain. The peptide bond is strong, stable, and has partial double-bond character, which restricts rotation and gives the protein a specific shape. In living

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