Q: Signal transduction describes the process of extracellular signalling molecules and ligands binding to cell-surface receptors which triggers events inside the cell. Which of the following best describes an event NOT typically associated with signal transduction started by extracellular signals?
A		The binding of epinephrine to adrenergic receptors
B		Protein phosphorylation
C		A steroid hormone binding to its receptor
D		Activation of secondary messenger molecules

Membrane Transport and Signalling | Hormonal Regulation |