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
(D) * DGPCR which act through opening of K+ channels lead to hyper polarisation, thus leading to inhibition.So, receptor which causes stimulation will not act through opening of K+ channels. o Muscarinic M2 receptor, Dopamine D2 receptor and serotonin 5HT1 receptor act through opening of K+ channels.o Whereas Angiotensin 1 receptor act by increasing Ca+2.