BIOMOLECULES AND ENZYMES

Detailed explanation-1: -A peptide bond can be broken by the addition of water, which restores the hydroxyl and hydrogen atoms to each amino acid, releasing energy in the process. This reaction is called a hydrolysis reaction.

Detailed explanation-2: -The protein hydrolysis aims to break down the peptide bonds and to increase the free amino acid and carboxyl groups.

Detailed explanation-3: -Amino acids undergo hydrolysis by cleaving the bond between an amino acid from the carbon atom of one alpha carbon and nitrogen atom linked to the alpha carbon of another amino acid; the bond is called a peptide bond. Therefore, the correct answer is D. peptide bond.

Detailed explanation-4: -In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.