So we have the first mini cycle shown here. We also call the half cycle. And the second half cycle, the second mini cycle is known as shown here. And together these two half cycles, these two mini cycles make up a single Q cycle. So the process by which electrons travel from the QH to the Ubiquinol that is produced on either complex one or complex two of the electron transport chain onto another carrier molecule known as Cytochrome C is known as the Q cycle. And by the way, Cytochrome C is actually a water soluble protein, and it is attached onto the intermembrane space side of this complex three.