At a PO₂ of 70 mm Hg and normal temperature and pH,hemoglobin is ________ percent saturated with oxygen.
A)10
B)25
C)50
D)75
E)more than 90

Question

Quizplus · Accepted Answer

At a PO₂ of 70 mm Hg, hemoglobin is more than 90% saturated with oxygen. This means that most of the available binding sites on hemoglobin have bound with oxygen at this partial pressure. This is because oxygen has a high affinity for hemoglobin and readily binds to it, even at low partial pressures.

At a PO₂ of 70 Mm Hg and Normal Temperature