Physiology A substance is present in concentration of 2mg% in the afferent arteriole and zero mg% in the efferent. True about the substance is A It is freely filtered in glomerulus B Secreted in cortical nephron C Absorbed in PCT D Impermeable in loop of Henle 💡 Explanation A substance is present in concentration of 2mg% in the afferent arteriole and zero mg% in the efferent. True about the substance is ✓ Correct Answer: A. It is freely filtered in glomerulus