Q. Regarding the proximal tubule, the following statements are true EXCEPT: (Solved)
1. Na is co-transported out of the tubule with glucose
2. Na is actively transported into the intercellular spaces by Na-K ATPase
3. the cells are characterised by a brush border and tight junctions
4. vasopressin increases the permeability to water by causing the rapid insertion of water channels into the luminal membrane
5. water moves passively out of the tubule along osmotic gradients
- d. vasopressin increases the permeability to water by causing the rapid insertion of water channels into the luminal membrane