During reabsorption, for the most part chloride ions:
A) pass between cells
B) move down their electrical gradient
C) move against their concentration gradient
D) both (a) and (b)
E) all of the above

Question

Quizplus · Accepted Answer

Chloride ions primarily pass between cells during reabsorption and move down their electrical gradient. This movement is facilitated by chloride channels located on the apical membrane of epithelial cells. However, some transporters can also move chloride ions against their concentration gradient in certain portions of the nephron.

During Reabsorption, for the Most Part Chloride Ions