Question

At partial pressure of zero how much oxy-gen is attached to hemoglobin molecule?

• A. 100%
• B. 50%
• C. 33.33%
• D. 0%

Answer 1

Answer:

A. 100%

• Oxygen saturation is a measure of the amount of hemoglobin that is bound to molecular oxygen at a given time point.

• A hemoglobin molecule becomes 100% saturated with oxygen (1.34 L of oxygen) at a PO2 of 100 mmHg.