Which part of the nephron is involved in reabsorption of sodium ions and water, and secretion of potassium and hydrogen ions?
A) Bowman's capsule and loop of Henle
B) distal tubule and collecting duct
C) proximal tubule and loop of Henle
D) efferent tubule and afferent tubule
E) afferent tubule and collecting duct

Question

Quizplus · Accepted Answer

The distal tubule and collecting duct are responsible for reabsorption of sodium ions and water, and secretion of potassium and hydrogen ions. The proximal tubule and loop of Henle are primarily involved in reabsorption of water, glucose, amino acids and other small molecules, as well as ions like chloride and bicarbonate. Bowman's capsule and loop of Henle are important in the filtration and processing of blood, but are not specifically involved in the reabsorption and secretion functions mentioned in the question. The options of efferent and afferent tubules are not relevant to the question, as these terms do not specifically relate to any part of the nephron.

Which Part of the Nephron Is Involved in Reabsorption of Sodium