

MCQOPTIONS
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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 | |