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Questions and Answers
What is the approximate percentage of CO2 that diffuses into the blood plasma?
What is the approximate percentage of CO2 that diffuses into the blood plasma?
- 30%
- 90%
- 70% (correct)
- 50%
What is the role of carbonic anhydrase in the process of CO2 transport?
What is the role of carbonic anhydrase in the process of CO2 transport?
- It catalyzes the formation of carbonic acid (correct)
- It catalyzes the formation of bicarbonate ions
- It catalyzes the formation of oxygen
- It catalyzes the formation of water
What is the effect of chloride ion movement on the charge in the erythrocyte?
What is the effect of chloride ion movement on the charge in the erythrocyte?
- It reverses the charge in the cell
- It keeps the charge in the cell constant (correct)
- It decreases the negative charge
- It increases the positive charge
At what Po2 is hemoglobin (Hb) approximately 70% saturated with oxygen?
At what Po2 is hemoglobin (Hb) approximately 70% saturated with oxygen?
What is the characteristic of the oxygen dissociation curve for hemoglobin (Hb)?
What is the characteristic of the oxygen dissociation curve for hemoglobin (Hb)?
What happens to the oxygen saturation of Hb when Po2 decreases?
What happens to the oxygen saturation of Hb when Po2 decreases?
What is the primary function of hemoglobin in the lungs?
What is the primary function of hemoglobin in the lungs?
What is the result of the binding of oxygen to one subunit of hemoglobin?
What is the result of the binding of oxygen to one subunit of hemoglobin?
What percentage of carbon dioxide is transported in the blood as dissolved CO2?
What percentage of carbon dioxide is transported in the blood as dissolved CO2?
What is the name of the compound formed when carbon dioxide binds to the amino group of hemoglobin?
What is the name of the compound formed when carbon dioxide binds to the amino group of hemoglobin?
In what environment does hemoglobin show high affinity for oxygen?
In what environment does hemoglobin show high affinity for oxygen?
What is the primary function of carbamino-hemoglobin in the transport of carbon dioxide?
What is the primary function of carbamino-hemoglobin in the transport of carbon dioxide?
What is the difference between the O2 dissociation curve for fetal hemoglobin and the O2 dissociation curve for adult hemoglobin?
What is the difference between the O2 dissociation curve for fetal hemoglobin and the O2 dissociation curve for adult hemoglobin?
What is the effect of increasing CO2 partial pressure on the pH of the blood at metabolically active tissues?
What is the effect of increasing CO2 partial pressure on the pH of the blood at metabolically active tissues?
What is the function of myoglobin in muscles?
What is the function of myoglobin in muscles?
How does the O2 dissociation curve for myoglobin compare to the O2 dissociation curve for Hb?
How does the O2 dissociation curve for myoglobin compare to the O2 dissociation curve for Hb?
What is the effect of CO2 partial pressure on the oxygen dissociation curve of Hb?
What is the effect of CO2 partial pressure on the oxygen dissociation curve of Hb?
What is the advantage of fetal hemoglobin's higher affinity towards O2?
What is the advantage of fetal hemoglobin's higher affinity towards O2?
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