Question

Explain Oxidoreductases and Dehydrogenas.

Answer 1

In biochemistry, an oxidoreductase is an enzyme that catalyzes the transfer of electrons from one molecule, the reductant, also called the electron donor, to another, the oxidant, also called the electron acceptor.

Dehydrogenase

an enzyme that catalyses the removal of hydrogen atoms from a particular molecule, particularly in the electron transport chain reactions of cell respiration in conjunction with the coenzymes NAD and FAD.

Answer 2

Dehydrogenases catalyze reversible biological reactions and utilizes NAD+/NADH. While Reductases catalyze non reversible biological reactions and utilize NADP+/NADPH

One exception to this however is the Glucose 6 phosphate dehydrogenase catalyzed reaction of the pentose phosphate pathway using NADP+/NADPH+