Which of the following will cause a shift in the hemoglobin-oxygen dissociation
ID: 3524018 • Letter: W
Question
Which of the following will cause a shift in the hemoglobin-oxygen dissociation curve to the right (increase oxygen unloading)?
an increase in temperature or an increase in plasma pH
increase in temperature only
increase in plasma pH only
increase in 2,3-bisphosphoglycerate (BPG) only
an increase in temperature or an increase in BPG
a.an increase in temperature or an increase in plasma pH
b.increase in temperature only
c.increase in plasma pH only
d.increase in 2,3-bisphosphoglycerate (BPG) only
e.an increase in temperature or an increase in BPG
Explanation / Answer
Answer
An increase in temperature or an increase in BPG will cause a shift in the hemoglobin-oxygen dissociation curve to the right.
The rightward shift causes decrease in the affinity of hemoglobin for oxygen.
The hemoglobin hardlt bind to oxygen but it easily unloads.
Hence, Option E ) An increase in temperature or an increase in BPG
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