an oxidized electron donor

An oxidized electron donor refers to a molecule or compound that has lost one or more electrons, making it more positively charged and therefore able to donate electrons to another molecule. Oxidation is a chemical reaction that involves the loss of electrons, and an oxidized molecule is one that has undergone this process. In biological systems, common examples of oxidized electron donors include NAD+ (nicotinamide adenine dinucleotide) and FAD (flavin adenine dinucleotide), which are involved in redox reactions in cellular respiration and other metabolic processes. These molecules act as electron acceptors, receiving electrons from other molecules that are being oxidized, and then donating those electrons to other molecules that are being reduced.