Biology
NULL
Medium
Question
Haemoglobin can be almost completely oxygenated by an oxygen pressure of __________ of mercury.
A
10 mm
B
60 mm
C
10 cm
D
100 mm
✓ Official correct answer
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A
10 mm
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B
60 mm
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C
10 cm
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D
100 mm
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Explanation
Hemoglobin becomes almost completely saturated with oxygen when exposed to an oxygen partial pressure of about 100 millimeters of mercury, close to the normal partial pressure of oxygen in arterial blood.