Physiology Which of the following is the best-known metabolic function of the lung A Inactivation of serotonin B Conversion of angiotensin–I to angiotensin–II C Inactivation of bradykinin D Metabolism of basic drugs by cytochrome P–450 system 💡 Explanation Which of the following is the best-known metabolic function of the lung ✓ Correct Answer: B. Conversion of angiotensin–I to angiotensin–II