A substance is present in a concentration of 2 mg% in the afferent aeriole and zero mg% in the efferent. True about the substance is:
This is only a hypothetical situation. Filtration fraction is about 20%. It means, of the total plasma passing through the glomerulus per unit time, about 20% is filtered out. If a substance has zero concentration in the efferent aeriole, it means all of that substance was freely and completely filtered out in the plasma that has formed the Glomerular Filtrate.
It is freely filtered at the glomerulus
Secreted in coical nephron
Absorbed in PCT
Impermeable in the loop of Henle
Excretory System (Kidney, Bladder) Acid-Base Balance