In contrast to a G protein-linked receptor and an enzyme-linked receptor, a channel-linked receptor:
A) is located on the cell surface.
B) is composed of seven alpha helices.
C) couples signaling molecules to signal transduction pathways.
D) is a ligand-gated channel.
E) functions as a tyrosine kinase.

Question

Quizplus · Accepted Answer

A channel-linked receptor, also known as a ligand-gated ion channel, opens or closes in response to the binding of a chemical messenger (ligand), allowing ions to pass through the membrane.

In Contrast to a G Protein-Linked Receptor and an Enzyme-Linked