Which Compound is a Side-Product of a Peptide Bond Formation

Question

Which compound is a side-product of a peptide bond formation?
A) water
B) phosphate
C) ammonium
D) carboxylic acid
E) None of the answers is correct.

Accepted Answer

A peptide bond forms through the removal of a water molecule between the carboxyl group of one amino acid and the amino group of another amino acid. Therefore, water is a side-product of peptide bond formation.