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