Question

Do lipids, proteins, or nucleic acids contain peptide bonds? Which one contains peptide bonds?

Answer 1

Peptide bond is present in proteins, not in lipids or nucleic acids.

Explanation:

Peptide bond is formed between amino group ( `NH2`) and carboxyl group ( `COOH`) of adjoining amino acids.

A protein molecule is a made up of large number of amino acids, arranged in a chain, bound by peptide bonds. Each amino acid has an amino group ( `NH2`) and a carboxyl group ( `COOH`) . `NH2` group of one amino acid forms a peptide bond (`NH-CO` )with `COOH` group of next amino acid with the removal of `H2O`.