So now what happens is basically the opposite of what happens here. So now we have the reverse reaction taking place. So we have about 85% of the carbon dioxide molecules existing in the bicarbonate ion form. And so what happens is these bicarbonate ions will move down their concentration gradient and into the red blood cell. And at the same time, the chloride shift takes place, but in the opposite direction. So as we move these bicarbonate ions into the red blood cell, not to have a build up or a change in electric charge, these chloride ions, also containing a negative charge, are basically pumped to the outside into the blood plasma space.