Q. Anti-diuretic hormone controls the concentration of urine, (Solved)
1. and can concentrate urine to up to 2500mosm/kg H??? H2O
2. in its absence, the collecting duct is impermeable to water
3. causing the ultimate resorption of up to 99.7% of the filtrate
4. by causing upregulation of aquaporin-1 channels
5. collecting duct
- c. causing the ultimate resorption of up to 99.7% of the filtrate