If a pharmacologist designed a drug that prevented the activation of G-proteins,which of the following would occur if a neurotransmitter binded to a metabotropic receptor?
A) Effector enzymes attached to the receptor would still be activated.
B) No effects would occur.
C) A second messenger would attach to the receptor.
D) Gene expression would increase.

Question

Quizplus · Accepted Answer

G-proteins are necessary for the activation of effector enzymes and the production of second messengers. Without G-proteins, there would be no downstream signaling pathways activated, leading to no effects on the cell. Gene expression is not directly affected by neurotransmitter binding to a metabotropic receptor.

If a Pharmacologist Designed a Drug That Prevented the Activation