BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The decomposition of a bond on reaction with water is called hydrolysis reaction. In the hydrolysis reaction of peptide bonds, the peptide bonds break on reacting with water and decompose into two amino acids. These amino acids on heating break up into ammonia and carbon dioxide. Thus, this is the correct option.

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: -Peptide bonds are formed by a condensation reaction of Carboxylic group of an amino acid and Amino group of another amino acid with the elimination of water molecule. When a peptide bond is hydrolyzed, a free amino ( ) group and the carboxyl ( ) functional groups are produced.

Detailed explanation-4: -A peptide bond can be broken by hydrolysis (the addition of water). The hydrolysis of peptide bonds in water releases 8–16 kJ/mol (2–4 kcal/mol) of Gibbs energy. This process is extremely slow, with the half life at 25 °C of between 350 and 600 years per bond.

Detailed explanation-5: -Hydrolysis (addition of water) is the reaction used for the degradation of the peptide bond.