The graph above demonstrates the relationship between the p…

 The graph above demonstrates the relationship between the partial pressure of oxygen and the percent to which blood hemoglobin would be bound to oxygen. 1. At a PO2 of 100 mm Hg, what percentage of hemoglobin sites would be bound to oxygen? 2. At a PO2 of 40 mm Hg, what percentage of hemoglobin sites would be bound to oxygen? 3. Assuming that the alveoli have a PO2 of 100 mm Hg, and blood passes through alveolar capillaries, and then travels to an active muscle tissue that has a PO2 of 20 mm Hg. What percentage of the RBC hemoglobin oxygen content would be released to the muscle?