which of the following statements accurately describes the physiological consequ
ID: 174293 • Letter: W
Question
which of the following statements accurately describes the physiological consequences of the Bohr effect?
A. as blood travels from the tissues back to the lungs, there is an increase in CO2 in the lungs, causing hemoglobin to pick up more oxygen in the lungs
B. as blood travels from the tissues back to the lungs, there is an increase in H+ in the lungs, causing hemoglobin to pick up more oxygen in the lungs
C. as blood travels from lung to tissue, there is a drop in pH, causing hemoglobin to unload more oxygen than if there were no change in pH
D. as blood travels from lung to tissue, there is an increase in pH, causing hemoglobin to unload more oxygen than if there were no change in pH
E. in the tissues, the oxygen released by hemoglobin is more likely to be picked up by myoglobin because myoglobin's affinity for oxygen depends on pH
Explanation / Answer
The bohr effect talks about the relation between the hemoglobin's oxygen binding affinity which is inversely proportional to the acidity and carbon dioxide concentration.
The answer will be as blood travels from lung to tissue, there is an increase in pH, causing hemoglobin to unload more oxygen than if there were no change in pH.
At higher pH, the hemoglobin loses its affinity with oxygen leading to the unloading of oxygen at the tissues.
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