<prompt> GABA- B receptor is which type of receptor -Inotropic receptorMetabotropic transmembrane receptorLigand gated ion channelIntrinsic ion channel  <response>: Ans: B. Metabotropic transmembrane receptorRef : KDT e p. 399, 402 6 6he p. 395; Katzung 17the p 377-378; lPe p 355Metabotropic recePtors:Are G-protein coupled receptors which act through second messenger.Examples: GABA-B receptors, Muscarinic M1 to M5 