Ion ligand receptors are: (A) Glycine receptor, (B) b adrenergic receptors, (C) V1 receptor, (D) Insulin receptor
Answer is A. LikeGABA, glycine acts by increasing Cl- conductance.The ionotropic receptors of glutamate are ligand-gated ion channels that resemble nicotinic cholinergic receptors and GABA and glycine receptors. Catecholamines acting on b adrenergic receptors use cAMP mechanism.