A substance is present in a concentration of 2mg% in the afferent arteriole and zero mg% in the efferent. True about the substance is
Afferent arteriole was having the substance. After it passed through the glomerulus, in the efferent arteriole it is absent. That means all of it was filtered out through the glomerulus.
It is free filtered in glomerulus
Secreted in cortical nephron
Absorbed in PCT
Impermeable in loop of Henle