Identify a characteristic of the fluid that enters the loop of Henle from the proximal tubule.
A) rich in glucose and amino acids
B) hyperosmotic to blood
C) isoosmotic to blood
D) has the same chemical composition as the glomerular filtrate
E) lacks sodium and potassium ions

Question

Quizplus · Accepted Answer

The fluid that enters the loop of Henle from the proximal tubule is isoosmotic to blood. This means that it has the same concentration of solutes as the blood. Most of the glucose and amino acids have already been reabsorbed in the proximal tubule, so there is less of them in the fluid entering the loop of Henle. The loop of Henle is responsible for creating a concentration gradient in the renal medulla, which allows for the reabsorption of water and solutes later in the nephron. The fluid leaving the loop of Henle will become increasingly hyperosmotic as it descends into the renal medulla.

Identify a Characteristic of the Fluid That Enters the Loop