And those high energy electrons on these molecules will move onto the electron transport chain on the inner membrane of the mitochondria to form those high energy ATP molecules. But under resting conditions, we don't want to generate these ATP molecules because we already have lots of these ATP molecules to begin with. And so we want to turn off this pathway. And one way by which we turn off this pathway is by inhibiting Pyruvate dehydrogenase complex from committing this molecule into the citric acid cycle. So we see that the kinase phosphorylates this, inactivates this enzyme and that prevents this reactor from actually taking place. Now, let's suppose we switch the argument.