The ability to form concentrated urine depends on the functions of
A)the proximal convoluted tubule.
B)the distal convoluted tubule.
C)the collecting duct.
D)the nephron loop.
E)both the distal convoluted tubule and the collecting duct.

Question

Quizplus · Accepted Answer

The distal convoluted tubule and collecting duct are responsible for the formation of concentrated urine. The distal convoluted tubule reabsorbs sodium and chloride ions, while the collecting duct reabsorbs water. This creates a concentration gradient that allows the urine to become more concentrated.

The Ability to Form Concentrated Urine Depends on the Functions