Which of the following is not involved in the signaling cascade after the odorant molecule binds to its receptor?
A) Activation of a G protein
B) Cyclic AMP used as a second messenger
C) Nitric oxide used as second messenger
D) Gated opening of ion channels
E) All of the above are involved in the signaling cascade.

Question

Quizplus · Accepted Answer

Nitric oxide is not typically used as a second messenger in the signaling cascade after an odorant molecule binds to its receptor. Instead, cyclic AMP and gated opening of ion channels are commonly involved, with activation of a G protein also playing a role.

Which of the Following Is Not Involved in the Signaling