No matter how the signal initiated by the binding of an extracellular ligand is,what is the outcome of that signal?
A)A protein in the middle of an intracellular signaling pathway is activated.
B)A protein at the top of an intracellular signaling pathway is activated.
C)A protein at the top of an extracellular signaling pathway is activated.
D)A protein at the top of an intracellular signaling pathway is deactivated.
E)A protein at the bottom of an intracellular signaling pathway is activated.

Question

Quizplus · Accepted Answer

The outcome of a signal initiated by the binding of an extracellular ligand is the activation of a protein at the top of an intracellular signaling pathway. This activated protein will then initiate a cascade of downstream signaling events that eventually lead to a cellular response.

No Matter How the Signal Initiated by the Binding of an Extracellular