Which statement about the chloride shift is false?
A)involves a movement of chloride ion into RBCs
B)depends on the chloride-bicarbonate countertransporter
C)involves a movement of bicarbonate ions into the plasma
D)is driven by a rise in PCO₂
E)causes RBCs to swell

Question

Quizplus · Accepted Answer

The statement "causes RBCs to swell" is false. The chloride shift actually helps prevent RBCs from swelling by maintaining a balance of ions on both sides of the cell membrane. As bicarbonate ions move out of the RBCs, chloride ions move in to maintain electrical neutrality, preventing the buildup of excess positive charge inside the cell and the resulting swelling.

Which Statement About the Chloride Shift Is False