During reabsorption in the proximal convoluted tubule, most of the Cl^- and HCO₃^- ions are moved by ________ mechanisms. A)osmotic B)active transport C)counter transport D)passive transport

Question

Quizplus · Accepted Answer

The vast majority of reabsorption in the proximal convoluted tubule occurs via passive transport mechanisms, where ions and molecules move down their concentration gradients, driven by the electrochemical gradient established by the Na+/K+ ATPase on the basolateral membrane. Although some active transport and counter transport mechanisms also contribute to reabsorption in this segment, they are relatively minor compared to passive transport. Osmotic mechanisms are not directly involved in ion and solute movement across the PCT epithelium.

During Reabsorption in the Proximal Convoluted Tubule, Most of the Cl-

During Reabsorption in the Proximal Convoluted Tubule, Most of the Cl^-