How does the binding of epinephrine to its receptor set a response in action?
A) It causes an exchange of GTP for G protein bound GDP.
B) It causes a pore to open, allowing proton/ion exchange.
C) It causes the release of insulin.
D) It causes G proteins to produce cGMP.
E) None of the answers is correct.

Question

Quizplus · Accepted Answer

The binding of epinephrine to its receptor activates a G protein-coupled receptor mechanism, which involves the exchange of GTP for GDP on the G protein, initiating a cascade of intracellular events.

How Does the Binding of Epinephrine to Its Receptor Set