Questions 19-20
19. Which of the following factors INCREASES hemoglobin’saffinity for oxygen? [MARK ALL THAT APPLY]
a. decreased [H+ ] b. decreased temperature c. decreased PO2 d.decreased pH Â Â e. increased PCO2
20. You discover a new mutation in the gene coding for carbonicanhydrase. You observe that patients with this mutationexhibit:
a. less buffering capacity of the blood
d. higher PCO2 levels in blood
b. less bicarbonate [HCO3-] concentration in blood
e. Hb has a lower affinity for O2 than normal
c. any of these could indicate a problem with carbonicanhydrase
