Explain about the importance of hydrogen bonding in proteins.

Explanation

(i) Hydrogen bonds occur in complex biomolecules such as proteins and in biological systems
(ii) For example, hydrogen bonds play an important role in the structure of deoxyribonucleic acid (DNA), since it holds together the two helical nucleic acid chains
(iii) In these systems, hydrogen bonds are formed between specific pairs, for example, with a thymine unit in one chain bonding to an adenine unit in another similarly, a cytosine unit in one chain bonds to a guanine unit in another.
(iv) Intramolecular hydrogen bonding also plays an important role in the structure of polymers, both synthetic and natural.