Which of the following reactions is not enzyme mediated in biological system ?
(a) Dissolving CO2 in water (b) Unwinding the two strands of DNA
(c) Hydrolysis of sucrose (d) Formation of peptide bond
Formation of both peptide bonds and glycosidic bonds (A) involve addition of a phosphate group to the precursor molecules. (B) would not require a catalyst in biological systems. (C) involve removal of a water molecule. (D) involve addition of carboxyl group.