Part of nephron impermeable to salt is ____________ADCTBCollecting ductsCAscending limb of loop of HenleDDescending limb of loop of HenleAnswer: D. Descending limb of loop of Henle Read Explanation: Henle’s loop is made up of the descending loop and an ascending loop. Descending limb of loop of Henle is impermeable to salt and doesn’t allow any salt to pass through it. Read more in App