Important factors which affect the capacity of haemoglobin to combine with oxygen is
Correct answer: D. All of these
- A. Temperature
- B. Carbon dioxide
- C. pH
- D. All of these
Explanation
Temperature, carbon dioxide concentration and pH all affect haemoglobin's affinity for oxygen. Increased temperature, carbon dioxide and acidity generally promote oxygen unloading from haemoglobin, so students who select only pH overlook the effects of the other two factors.
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