Vitamin A is a relatively small,lipid-soluble molecule that can behave as a hormone.Most likely its receptor
A) is an ion channel receptor.
B) is a protein kinase receptor.
C) involves a G protein.
D) is not connected to the cell membrane.
E) highly vulnerable to antagonists.

Question

Quizplus · Accepted Answer

Vitamin A, being lipid-soluble, can pass through the cell membrane and typically binds to intracellular receptors, which are not connected to the cell membrane.

Vitamin a Is a Relatively Small,lipid-Soluble Molecule That Can Behave