Answer:
Epinephrine is a hormone that is released from the adrenal gland. It plays an important role in the body’s response to stress and danger. Epinephrine binds to its receptor on the surface of cells, which causes changes in cell function. The second messenger molecule that mediates this action is cAMP (cyclic adenosine monophosphate). When epinephrine binds to its receptor, it activates a G protein-coupled receptor kinase (GRK) pathway. This pathway leads to activation of cAMP production by phosphorylation of PKA.
Step-by-step explanation: