In comparison to the distal tubule, the proximal tubule has a
A) leakier epithelium and is more responsive to hormones.
B) small apical surface area and is more responsive to hormones.
C) tighter epithelium and a larger apical surface area.
D) leakier epithelium and a larger apical surface area.
E) tighter epithelium and is more responsive to hormones.

Question

Quizplus · Accepted Answer

The proximal tubule has a leakier epithelium compared to the distal tubule, allowing for more reabsorption of water and solutes. It also has a larger apical surface area due to the presence of microvilli, which increases its capacity for reabsorption.

In Comparison to the Distal Tubule, the Proximal Tubule Has