Reduction: Reduction is the gain of electrons by a molecule, atom, or ion, often occurring simultaneously with oxidation in metabolic reactions.
Electron Transport Chain:The electron transport chain is a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, coupled with the transfer of protons across a membrane to generate ATP.
ATP (Adenosine Triphosphate):ATP is a high-energy molecule used as the main energy currency in cells, produced through oxidative phosphorylation during cellular respiration