What is the Function of the Osmotic Gradient Found in the Kidney

Question

What is the function of the osmotic gradient found in the kidney?
A)to allow electrolytes to move from low to high concentrations in the absence of ATP
B)to permit the precise control of the retention of water and electrolytes
C)to allow the loop of Henle to deliver water to the renal vein
D)to control the filtration of large cells at the glomerulus
E)to permit the excretion of damaged red blood cells

Accepted Answer

The osmotic gradient found in the kidney allows for the precise control of the retention of water and electrolytes. This gradient is established by the loop of Henle, which creates a concentration gradient in the interstitial fluid surrounding the nephron. This gradient allows for the reabsorption of water and electrolytes in the collecting duct, which helps regulate the body's fluid and electrolyte balance.