Pharmacology G-protein coupled receptor that does not act through opening of potassium channels is A Muscarinic M2 receptor B Dopamine D2 receptor C Serotonin 5 HT 1 receptor D Angiotensin 1 receptor 💡 Explanation G-protein coupled receptor that does not act through opening of potassium channels is ✓ Correct Answer: D. Angiotensin 1 receptor