Hemoglobin, the main oxygen-carrying molecule in crimson blood cells, carries equally oxygen and carbon dioxide. Nonetheless, the CO2 sure to hemoglobin won't bind to the exact same web-site as oxygen. Instead, it combines with the N-terminal groups within the 4 globin chains. Nevertheless, as a consequence of allosteric consequences https://www.youtube.com/watch?v=buIHtQY7fCU