Question

Compare the statements :

Statement A. When the urine moves through the descending limb, it becomes hypertonic and as it passes through the ascending limb of loop of Henle, it becomes hypotonic

Statement B. The descending limb is permeable to sodium ions, while the ascending limb is impermeable to sodium ions

• A. Statement A is correct and B is wrong
• B. Statement A is wrong and B is correct
• C. Both statements A and B are wrong
• D. Both statements A and B are correct

Answer 1

The correct option is A Statement A is correct and B is wrong

When the urine moves through the descending limb, it becomes hypertonic and as it passes through the ascending limb of the loop of Henle, it becomes hypotonic because the descending limb is permeable to water and impermeable to sodium ions, while the ascending limb is impermeable to water and permeable to sodium ions.

So, the correct answer is 'Statement A is correct and B is wrong'.