Carbon monoxide replaces oxygen in oxygenated hemoglobin according to the reaction:
a. Use the reactions and associated equilibrium constants at body temperature to fi nd the equilibrium constant for the reaction just shown.
b. Suppose that an air mixture becomes polluted with carbon monoxide at a level of 0.10%. Assuming the air contains 20.0% oxygen, and that the oxygen and carbon monoxide ratios that dissolve in the blood are identical to the ratios in the air, what is the ratio of HbCO to HbO2 in the blood stream? Comment on the toxicity of carbon monoxide.