Normal GFR is ?

Ans. is 'a' i.e., 125 ml/min In man, resting glomerular filtration rate is about 125 ml/min (180L/day), the renal plasma flow being about 600 ml/min. Thus about one-fifth (20%) of plasma passing through kidney is filtered, i.e., fraction of renal plasma flow that is filtered (filtration fraction) is 0-2.