Biology / Bio 2925 · Atom · ~20 seconds
Plasma Membrane Receptors and cAMP Second Messenger
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
A water-soluble hormone binds a surface receptor, activating a G-protein that triggers adenylyl cyclase to convert ATP into cyclic AMP, per Bio 0805, amplifying the signal inside the cell.
Show
A sprinter's epinephrine surge triggers G-protein cascades producing many cAMP molecules per receptor, amplifying the signal body-wide.
Watch for
Phosphodiesterase continuously breaks down cAMP, so the signal terminates once hormone binding stops.