Which part of nephron is impermeable to water

Parts of nephron

part of nephron impermeable to salt is

Which part of nephron is impermeable of H_(2)O but allows transport of electrolytes actively or passively?

part of nephron impermeable to salt is:

Part of nephron impermeable to salt is

Part of nephron impermeable to salt is

Part of nephron impermeable to salt is

Part of nephron impermeable to salt is

Part of nephron impermeable to salt is