Carbon monoxide ( CO ) competitively inhibits the binding of oxygen to hemoglobin, and it binds to hemogiobin with an affirity nearty 250 imes grater invan axygan. When a molecule of CO binds to just one subunit of hemoglobin, all the other subunits experience diffculty releasing 02 to tissues, which an an iaad to suffocation. The graph below is an oxygen saturation curve for hemoglobin. in which groph 3 represents normal hemoglotin. Based on the description, soloct alf cortect etatementin. Carbon monoxide stabilizes the T state of hemoglobin Graph 1 most likely represents oxygen saturation of cur Carbon monoxide stabilizes the R state of hemoglobin.