BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Hydrogen Bonding. Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom.

Detailed explanation-2: -Disulfide bond/bridge is an actual covalent bond, whereas hydrogen bond is an intermolecular bonding interaction (electrostatic attraction) between a hydrogen atom bonded to a very electronegative atom and an adjacent atom with a long pair of electrons.

Detailed explanation-3: -Ionic or electrostatic interactions between side chains, hydrogen bonds, and hydrophobic interactions are weaker than the disulfide bond.

Detailed explanation-4: -Hydrogen has an electronegativity of 2.20 and sulphur has an electronegativity of 2.58. The electronegativity difference is 0.38. The electrons are shared in a nonpolar covalent bond.