So Ubiquinon can also pick up except those electrons from protein complex number two. And then that Ubiquinol travels to protein complex number three. So let's go back and let's summarize our results. So high energy electron carriers called NADH molecules pass their electrons to flavin mononucleotide of complex number one which then shuttles those electrons via a series of iron sulfur groups and onto a molecule known as Ubiquinone. And the Ubiquitone in humans is known as coenzyme Q ten. Now, fadh two is itself synthesized in protein complex number two.