Which is released during the formation of a peptide bond a) a five-carbon sugar b) an amino group c) an amino acid d) a water molecule

The right option is; D) a water molecule

A peptide bond is a covalent bond that forms between two molecules of amino acid in which the amino group of one amino acid reacts with the carboxyl group of the other amino acid, releasing a molecule of water. This reaction in which a peptide bond is formed is called a dehydration synthesis reaction.

atp is used for energy.