PLEASE HELP QUICK During a "fight or flight" response in mammals, the adrenal gland releases a hormone called epinephrine that stimulates liver cells to release glucose for emergency fuel. Describe and explain the signal transduction pathway that follows the release of epinephrine.

Three stages exist in the process of cell signalling or communication.

Firstly, at the reception stage,a protein that is at the cell surface detects a chemical signal and transduction further takes place,here, a change in protein causes a stimulation of other changes including a signal transduction pathways and then there is response that is almost any cellular activity.

The binding of ephedrine to it's receptor on a muscle cell,that is a type of G-protein coupled receptor ,there is a trigger of signal transduction cascade which involves the production of the second messenger molecule cyclic AMP (cAMP).

However, through the regulation of these enzymes,a muscle cell gets large rapidly and then ready pool of glucose molecules.

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