When a hormone binds to a membrane-bound receptor and activates G proteins, A) ion channels could be opened. B) IP₃ may be activated. C) cyclic AMP production may be increased. D) DAG may be activated. E) All of the choices are correct.

Question

Quizplus · Accepted Answer

When a hormone binds to a membrane-bound receptor and activates G proteins, it can lead to various cellular responses including the opening of ion channels, activation of enzymes like adenylyl cyclase (which increases cyclic AMP production), and activation of phospholipase C (which leads to the production of diacylglycerol (DAG) and inositol triphosphate (IP3)). Therefore, all of the choices are correct.

When a Hormone Binds to a Membrane-Bound Receptor and Activates