The proximal tubule
A) reabsorbs about 65% of the filtered water.
B) is the site of action for vasopressin
C) is the location where glucose is secreted
D) lies between the loop of Henle and the collecting ducts
E) none of these answers.

Question

Quizplus · Accepted Answer

The proximal tubule reabsorbs about 65% of the filtered water, along with various solutes such as glucose, amino acids, and ions.

Answer: B
 Vasopressin, also known as antidiuretic hormone (ADH), acts on the cells in the distal tubules and collecting ducts to increase water reabsorption. However, the proximal tubule is not the site of action for ADH.

Answer: E
 Glucose is not secreted in the kidneys. Rather, it is filtered by the glomerulus and reabsorbed in the proximal tubule.

Answer: D
 The proximal tubule lies directly after the Bowman's capsule and is followed by the loop of Henle. The collecting ducts come after the loop of Henle.

The Proximal Tubule