Hemoglobin, the key oxygen-carrying molecule in pink blood cells, carries each oxygen and carbon dioxide. Nonetheless, the CO2 sure to hemoglobin doesn't bind to precisely the same site as oxygen. Rather, it combines Using the N-terminal groups within the 4 globin chains. Having said that, because of allosteric consequences https://www.youtube.com/watch?v=buIHtQY7fCU