And so the only difference between these two molecules is on this region, we have a methylene group, a ch two component. But on this region of the oxyloacetate, we have a carbonyl component. And so we see that what happens in this three step process is we basically transform the methylene group on the Succinate into the oxyloacetate that contains a carbonyl group. In the process, we also extract we extract high energy electrons by the carrier NAD plus as well as Fads. Remember, Fad is flavin adenucleotide that is able to obtain two H atoms, while the NAD plus is a carrier nicotine amide adenine nucleotide that is able to obtain Hydride ions. So a single Hydride ion that contains two electrons on that H ion.