Alex studies ionotropic NMDA receptors, which open (become activated) when glutamate binds to the receptor. He finds that magnesium inhibits the channel even when glutamate is bound because it blocks the opening of the NMDA channel. What is the best description of magnesium?

Question

Quizplus · Accepted Answer

Magnesium acts as a noncompetitive antagonist because it inhibits the NMDA receptor channel by blocking its opening without competing with glutamate for the same binding site.

Alex Studies Ionotropic NMDA Receptors, Which Open (Become Activated) When