Let's begin by discussing this pathway here. So one very simple way to actually deactivate this particular structure is for the epinephrine to actually be released, for the epinephrine to simply dissociate. So if the epinephrine dissociates from that site, as shown in this diagram, what that does is it basically inactivates the ability of this beta receptor to basically activate the alphagy proteins. And if the alphagy proteins cannot be activated, they cannot go on and activate those adenylus cyclaces. Now, under what conditions will the epinephrine actually dissociate? Well, let's use a bit of chemistry.