All characteristics of Hemoglobin EXCEPT:
Correct answer: B. Loses oxygen at PO2 60mmHg
- A. Has more affinity with oxygen
- B. Loses oxygen at PO2 60mmHg
- C. Transports oxygen
- D. Has four iron atoms in molecule
Explanation
Hemoglobin indeed releases oxygen to tissues when the partial pressure of oxygen (PO2) decreases, which typically happens around 40 mmHg or lower, not specifically at 60 mmHg. This phenomenon is part of the oxygen-hemoglobin dissociation curve.
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