Answer
The action/function of the receptor-hormone complex is to activate the G-protein in the plasma membrane of the target (cells). G-proteins are important in controlling the opening and closing of membrane ion channels.
Work Step by Step
Water soluble hormones diffuse from the blood then binds to the plasma membrane of cell receptor proteins.. The hormone-receptor complex activates G-proteins in the target plasma membrane, Next the G-Protein complex activates adenylate cyclase which converts ATP to cAMP.. Cyclic AMP activates protein kinase which in turn phosphorylates which can then be more easily absorbed at membrane surfaces.
