What is the main function of dehydrogenase enzymes?

Dehydrogenase enzymes play a crucial role in biochemical reactions by transferring electrons from one molecule to another. These enzymes facilitate oxidation-reduction (redox) reactions, where they remove hydrogen atoms from a substrate. In this process, they often reduce a corresponding electron acceptor, usually a cofactor like NAD+ or FAD, converting it to NADH or FADH2. This electron transfer is vital for various metabolic pathways, including cellular respiration and fermentation, as it helps in the generation of ATP, the energy currency of the cell.

The ability of dehydrogenases to transfer electrons is essential for maintaining the flow of energy within biological systems, making them integral to the production of cellular energy. Therefore, recognizing their primary role in electron transfer clarifies their significance in metabolic processes.