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Physiology Quiz -
Respiratory Physiology - Part 5
Test your basic knowledge of respiratory physiology by taking this simple quiz.
(1)   Under resting conditions, approximately, what is the total oxygen (O2) content of venous blood?
(2)   Under resting conditions, approximately, what is the total oxygen (O2) content of arterial blood?
(3)   Under resting and normal physiological conditions, the oxygen (O2) P50 value for human blood is __________ mm Hg. Note: Your response should be a whole number.



(4)   In the human body, the CO2 (carbon dioxide) hydration reaction is catalyzed by this enzyme:



(5)   A higher numerical value of oxygen (O2) P50 indicates a higher hemoglobin affinity for O2. Note: O2 P50 is the oxygen partial pressure (PO2) at which 50% of hemoglobin molecules are saturated with O2.
(6)   A higher numerical value of oxygen (O2) P50 indicates a lower hemoglobin affinity for O2. Note: O2 P50 is the oxygen partial pressure (PO2) at which 50% of hemoglobin molecules are saturated with O2.
(7)   Fetal hemoglobin has a higher affinity for oxygen (O2) than maternal hemoglobin.
(8)   The O2 P50 value of fetal hemoglobin is greater (in numerical value) than the O2 P50 value of meternal hemoglobin. Note: O2 P50 is the oxygen partial pressure (PO2) at which 50% of hemoglobin molecules are saturated with O2.
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Posted: Tuesday, January 6, 2015