The other electron ends up on this heme A three group. And when those two electrons are abstracted at the same time, two protons are picked up by this protein by this complex force structure from the matrix of the mitochondria. And this allows us to break this bridge between this oxygen and this oxygen here. So we form the copper hydroxide group and the heme A three hydroxide group. So in step three, two more reduced cytochrome C molecules are oxidized to transfer an additional two electrons into our system. And two H plus two H plus ions are also obtained from the matrix of the mitochondria to help us break that peroxide bond, this bond here, and ultimately form these two structures.