Human kidneys can produce urine nearly
a) Three times concentrated than initial filtrate
b) Four times concentrated than initial filtrate
c) Five times concentrated than initial filtrate
d) Six times concentrated than initial filtrate
AA
BB
CC
DD
A.
(b) Presence of interstitial gradient helps in an easy passage of water from the collecting tubule there by concentrating the filtrate (urine). Human kidney can produce nearly four times concentrated than the initial filtrate formed
