Hemoglobin, the main oxygen-carrying molecule in red blood cells, carries the two oxygen and carbon dioxide. On the other hand, the CO2 bound to hemoglobin will not bind to precisely the same web-site as oxygen. In its place, it combines with the N-terminal groups around the four globin chains. https://bloodcastlemuonline00987.thenerdsblog.com/42204489/blood-castle-mu-online-an-overview