Question

Peptide bond between two amino acids is formed by __(i)__ reaction which releases __(ii)__ and forms __(iii)__.

• A. (i) Esterification (ii) $H_{2}O$ (iii) Polypeptides
• B. (i) Hybridisation (ii) $O_2$ (iii) Polypeptides
• C. (i) Condensation (ii) $H_{2}O$ (iii) Polypeptides
• D. (i) Phosphorylation (ii) $O_2$ (iii) Polypeptides

Answer 1

The correct option is C

(i) Condensation (ii) $H_{2}O$ (iii) Polypeptides

Proteins are usually polymers of polypeptides formed by fusion of many amino acids by peptide bonds, which are the products of condensation of a hydrogen from amino group with hydroxyl molecule of carboxylic group to release a water molecule.