Which of the Following Occurs at the Distal Convoluted Tubule

Question

Which of the following occurs at the distal convoluted tubule?
A) 180 L of water is filtered into the tubules.
B) Renin is secreted.
C) Urine flows from the distal convoluted tubule into the ascending loop of Henle.
D) Sodium and water are reabsorbed.

Accepted Answer

The distal convoluted tubule is responsible for the reabsorption of sodium and water, which helps regulate the body's electrolyte balance and fluid volume. Option A is incorrect because 180 L of water is actually filtered into the glomerulus, not the tubules. Option B is incorrect because renin is secreted by cells in the juxtaglomerular apparatus, which is located in the wall of the afferent arteriole. Option C is incorrect because urine flows from the distal convoluted tubule into the collecting duct, not the ascending loop of Henle.