<prompt> Normal glomerular filtration rate is ?50 mlmin125 mlmin250 mlmin500 mlmin  <response>: Ans. is b i.e., 125 mlminIn man, resting glomerular filtration rate is about 125 mlmin 180Lday, the renal plasma flow being about 600 mlmin.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. 