Question

Urea... Multiple Choice is completely reabsorbed by the nephron. is secreted into the filtrate by cells of the distal convoluted tubule. None of these choices is correct. ia actively transported into the filtrate by cells of the collecting duct. diffuses out of the collecting ducts into the interstitial fluid of the medulla and then diffuses into the descending loop of Henle.

Answer 1

Option B

Step-by-step explanation:

Urea, the main nitrogenous excretory product of mammals and a major organic component of urine is cleared from the blood by the kidney. Urea's concentration builds up in the renal medulla as they leave through the walls of the cortical collecting duct and go into the interstitial fluid in the region of the inner medulla, then some diffuses into the descending loop of Henle.