Read the following statements carefully: (A) Reabsorption is minimum in the ascending limb of Henle's loop. (B) The descending limb of loop of Henle is permeable to electrolytes but impermeable to water. (C) The collecting duct allows passage of small amounts of urea into the medullary interstitium to keep up the osmolarity. (D) The ascending limb allows transport of electrolytes actively or passively. How many of th

Step-by-step solution

Statement (A) is correct as reabsorption is minimum in the ascending limb of Henle's loop, which plays a significant role in the maintenance of high osmolarity of medullary interstitial fluid. Statement (B) is incorrect because the descending limb of loop of Henle is permeable to water but almost impermeable to electrolytes. Statement (C) is correct as the collecting duct allows passage of small amounts of urea into the medullary interstitium to keep up the osmolarity. Statement (D) is correct because the ascending