Metabotropic receptor -induced gating of ion channels requires more time to occur because of which of the following?
A) Ion channels linked to metabotropic receptors must move to the membrane before gating.
B) Their gating is linked to a G protein.
C) The channels are slower to open.
D) Intracellular calcium must increase before those channels will open.
E) Metabolic byproducts are required to open those channels.

Question

Quizplus · Accepted Answer

Metabotropic receptors act through G proteins, which then activate or inhibit downstream effectors, such as ion channels. This indirect signaling pathway takes more time compared to direct ion channel opening by ionotropic receptors.

Metabotropic Receptor -Induced Gating of Ion Channels Requires More Time