Which of the following ligands would not have an intracellular receptor?
A)cortisol
B)retinoic acid
C)thyroxine
D)epinephrine
E)progesterone

Question

Quizplus · Accepted Answer

Epinephrine functions as an extracellular ligand and binds to transmembrane receptors, such as G protein-coupled receptors, on the plasma membrane of target cells. It does not have an intracellular receptor. The other choices - cortisol, retinoic acid, thyroxine, and progesterone - act as intracellular ligands and have corresponding intracellular receptors.

Which of the Following Ligands Would Not Have an Intracellular