Podcast
Questions and Answers
What is the usual oxygen saturation of systemic arterial blood?
What is the usual oxygen saturation of systemic arterial blood?
- 97% (correct)
- 75%
- 80%
- 98%
What weakens the HB-O2 bond according to the text?
What weakens the HB-O2 bond according to the text?
- Increased pH (correct)
- Decreased 2,3 BPG concentration
- Decreased CO2 concentration
- Increased temperature
What is the molecule that shifts the oxygen-hemoglobin dissociation curve to the right?
What is the molecule that shifts the oxygen-hemoglobin dissociation curve to the right?
- Hemoglobin
- Carbon Monoxide
- 2,3 BPG (correct)
- Oxygen
At what partial pressure of oxygen (PO2) in the lungs does hemoglobin reach approximately 98% saturation?
At what partial pressure of oxygen (PO2) in the lungs does hemoglobin reach approximately 98% saturation?
What happens to the affinity of hemoglobin for oxygen when pH increases?
What happens to the affinity of hemoglobin for oxygen when pH increases?
Which gas is the most soluble in plasma?
Which gas is the most soluble in plasma?
What is the role of hemoglobin in oxygen transport?
What is the role of hemoglobin in oxygen transport?
What is the maximum quantity of oxygen that will combine chemically with the hemoglobin in a unit volume of blood?
What is the maximum quantity of oxygen that will combine chemically with the hemoglobin in a unit volume of blood?
According to Dalton’s Law of Partial Pressures, what is the total pressure exerted by a mixture of gases?
According to Dalton’s Law of Partial Pressures, what is the total pressure exerted by a mixture of gases?
What causes oxygen to diffuse from the alveoli into the pulmonary capillary blood?
What causes oxygen to diffuse from the alveoli into the pulmonary capillary blood?
