And the transfer of electrons, as we'll see in the future lecture, actually takes place within this vertical component of this complex. Now, the function of the complex is to actually oxidize the NADH back to NAD plus, accept those high energy electrons, and then move those high energy electrons along a specific pathway. And that generates an electric current that basically allows us to pump those H plus ions across the membrane from the matrix and into the intermembrane space. Now, let's move on, or actually, since we're on the subject, let's look at coenzyme Q. So coenzyme Q, also known as Ubiquinone, is pretty much this small molecule that is dissolved in the membrane of the mitochondria. This is shown here.