Which statement regarding sodium reabsorption is not accurate?
A) It plays a role in glucose, amino acid, and urea reabsorption in the proximal tubule.
B) It is under hormonal control in the distal tubule.
C) In the loop of Henle, it contributes to the formation of concentrated urine.
D) Approximately 0.5% of sodium in the filtrate is reabsorbed on a daily basis.
E) Aldosterone is a key hormone involved in facultative reabsorption.

Question

Quizplus · Accepted Answer

The statement that approximately 0.5% of sodium in the filtrate is reabsorbed on a daily basis is not accurate. In reality, around 99% of filtered sodium is reabsorbed through various parts of the nephron, with the vast majority occurring in the proximal tubule. Thus, only 0.5-1% of filtered sodium is excreted in the urine.

Which Statement Regarding Sodium Reabsorption Is Not Accurate