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The following question is from EK bio review, chapter 7, question 154.
Which of the following would most likely occur in the presence of a carbonic anhydrase inhibitor?
A. The blood pH would increase.
B. The carbamino hemoglobin concentration inside erythrocytes would decrease.
C. The rate of gas exchange in the lungs would decrease
D. The oxy hemoglobin concentration inside erythrocytes would increase.
Carbonic anyhydrase catalyzes the following reaction: CO2 + H20 <=>H+ + HCO3-. I put down B because I thought the relative concentration of bicarbonate ion would decrease, which means there would be less bicarbonate ion going into hemoglobin to form carbamino hemoglobin. Therefore, we the carbamino hemoglobin concentration inside erythrocytes wuold decrease.
A is wrong because pH would decrease in the tissues if we have less reduced hemoglobin to buffer the blood, while increasing in the lungs because of H+ being bound to hemoglobin.
The correct answer is C...I guess I see that there would be less partial pressure of CO2 in the blood relative to the alveolus/air and that means decreased transfer of gas particles, but why is C more correct than B?
Which of the following would most likely occur in the presence of a carbonic anhydrase inhibitor?
A. The blood pH would increase.
B. The carbamino hemoglobin concentration inside erythrocytes would decrease.
C. The rate of gas exchange in the lungs would decrease
D. The oxy hemoglobin concentration inside erythrocytes would increase.
Carbonic anyhydrase catalyzes the following reaction: CO2 + H20 <=>H+ + HCO3-. I put down B because I thought the relative concentration of bicarbonate ion would decrease, which means there would be less bicarbonate ion going into hemoglobin to form carbamino hemoglobin. Therefore, we the carbamino hemoglobin concentration inside erythrocytes wuold decrease.
A is wrong because pH would decrease in the tissues if we have less reduced hemoglobin to buffer the blood, while increasing in the lungs because of H+ being bound to hemoglobin.
The correct answer is C...I guess I see that there would be less partial pressure of CO2 in the blood relative to the alveolus/air and that means decreased transfer of gas particles, but why is C more correct than B?