Multiple Choice
Which statement regarding haemoglobin is correct?
A) It combines preferentially with O2 over any other molecules.
B) When combined with carbon dioxide, it is known as oxyhaemoglobin.
C) It plays a critical role in determining the amount of O2 that is exchanged between alveoli and blood, because it acts as a storage depot, removing dissolved O2 from the blood and thereby keeping PO2 low and allowing net diffusion of O2 to continue until the haemoglobin is completely saturated.
D) It combines preferentially with CO2 when partial partial pressure of O2 is high in arterial blood.
Correct Answer:
Verified
Correct Answer:
Verified
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