Now, the NADH that we produced will be used by the electron transport chain, as we'll discuss in a future lecture. So now let's move on to step two of this process that takes place in step three. So in the next step, we take that oxylosuxtonate and bivactivity of the same enzyme, isocitrate dehydrogenase. We mix it with an H plus ion, and we basically form a molecule known as alpha ketonoglutrate. So the highly unstable oxylosuxanate can now undergo a decarboxylation reaction. So this was the oxidation reduction reaction, and this is the decarboxylation step.