The neurotransmitters; nor-adrenaline, adrenaline and dopamine act through which of the following receptors?: (A) Single pass transmembrane receptors, (B) Four pass transmembrane receptors, (C) Seven pass transmembrane receptors, (D) Ligand gated receptors
Answer is C. Ans. (C) Seven pass transmembrane receptors(Ref: KDT 8th/e p54, 55)These neurotransmitters (A, NA, DA) act through G-protein coupled receptors which are also known as seven-transmembrane domain receptors, heptahelical receptors and serpentine receptors.