Which of the following counteracts the movement of bicarbonate ions from the RBC?
A) the Bohr effect
B) the Haldane effect
C) release of hydrogen ion
D) chloride shifting

Question

Quizplus · Accepted Answer

Chloride shifting is the process by which chloride ions move from the plasma into the RBCs in exchange for bicarbonate ions, which helps to maintain the electrochemical balance between the two compartments. This counteracts the movement of bicarbonate ions from RBCs, which is necessary to maintain normal blood pH. The Bohr and Haldane effects describe how changes in pH and oxygen saturation, respectively, affect the affinity of hemoglobin for oxygen and carbon dioxide, but they do not directly counteract the movement of bicarbonate ions from RBCs. Release of hydrogen ion can actually promote the movement of bicarbonate ions out of RBCs by driving the conversion of carbonic acid to bicarbonate and hydrogen ions.

Which of the Following Counteracts the Movement of Bicarbonate Ions