1.

Anti-diuretic hormone controls the concentration of urine,

A. and can concentrate urine to up to 2500mosm/kg H??? H2O
B. in its absence, the collecting duct is impermeable to water
C. causing the ultimate resorption of up to 99.7% of the filtrate
D. by causing upregulation of aquaporin-1 channels
E. collecting duct
Answer» D. by causing upregulation of aquaporin-1 channels


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