A substance is present in concentration of 2 mgdeg/o in the afferent aeriole and zero mg% in the efferent. True about the substance is:
It is free filtered in glomerulus
Secreted in coical nephron
Absorbed in PCT
Impermeable in loop of Henk
A i.e. It is freely filtered in glomerulus If the substance is 0 mg% in efferent aeriole, it means that all of it has freely filtered in glomerulus.