And so we divide these numbers. We get a value of 2.5 of ATP molecules are generated when a single NADH produced by the citric acid cycle is oxidized into NAD plus by the electron transport chain. Now let's carry out the same calculation, except now we do it for the NADH produced by glycolytic pathway, which takes place in a cytoplasm, because NADH actually passes down the electrons to the DHAP to form the g three P. And then the g three p goes into the inner membrane of the mitochondria, binds up to this enzyme here. And so ultimately, those two electrons on the NADH produced in the glycolytic pathway actually end up on this protein, and then they're picked up by Ubiquinone to form Ubiquinol. And so NADH bypasses complex one. And that means as the electrons pass down to Ubiquinol, the Ubiquinol travels and attaches onto complex three.