In the nephron loop
A)water moves by osmosis out of the descending limb.
B)sodium ions are actively transported out of the ascending limb.
C)interstitial fluid around the nephron loop has four times the solute concentration as blood plasma. .
D)the filtrate in the descending limb becomes more and more hypertonic due to the loss of water.
E)All of the answers are correct.

Question

Quizplus · Accepted Answer

All of the statements are true regarding the nephron loop. Water moves out of the descending limb by osmosis due to the higher concentration of solutes in the interstitial fluid. Sodium ions are actively transported out of the ascending limb, creating a concentration gradient for the reabsorption of other ions and water in the distal convoluted tubule. The interstitial fluid around the nephron loop has a higher solute concentration than blood plasma, which contributes to the osmotic gradient in the kidney. As filtrate moves down the descending limb, water is lost and the concentration of solutes in the filtrate increases, making it more hypertonic.

In the Nephron Loop