So once we obtain this test tube, we basically remove the pellet and then we take the supernatin and we expose the supernatin to yet another centrifugation process. But now we bump our acceleration, we increase it to 10,000 GS. Once we do that, we basically form a pellet that now contains our mitochondria, which are smaller than nuclei. And then we once again remove the pellet, we take the supernatin, we expose it to yet another centrifugation process, and now we increase the value of the acceleration to 100,000 GS. And what that does is it basically creates this pellet that now contains very tiny microsomes. And usually inside the supernatin are basically the proteins that we actually want to use.