In order for a cell to respond to the signaling molecule epinephrine, it must have ____.
A) ion channels
B) a lipid bilayer through which epinephrine can pass
C) receptors with an epinephrine binding site on the cytoplasmic side of the plasma membrane
D) receptors with an epinephrine binding site on the plasma membrane surface
E) nuclear membrane receptors

Question

In order for a cell to respond to the signaling molecule epinephrine, it must have ____.
A) ion channels
B) a lipid bilayer through which epinephrine can pass
C) receptors with an epinephrine binding site on the cytoplasmic side of the  plasma membrane
D) receptors with an epinephrine binding site on the plasma membrane surface
E) nuclear membrane receptors

Quizplus · Accepted Answer

Epinephrine, being a water-soluble hormone, cannot pass through the lipid bilayer of the cell membrane. Instead, it binds to specific receptors located on the surface of the plasma membrane. These receptors then initiate a signal transduction pathway inside the cell, leading to the desired cellular response.

In Order for a Cell to Respond to the Signaling