Which is the correct order of the series of reactions set in motion when a rhodopsin molecule is activated? A) Activation of G protein,photon absorption,second messenger diffusion,closing of Na⁺ channels B) Activation of G protein,second messenger diffusion,photon absorption,closing of Na⁺ channels C) Closing of Na⁺ channels,activation of G protein,photon absorption,second messenger diffusion D) Closing of Na⁺ channels,activation of G protein,second messenger diffusion,photon absorption E) Photon absorption,activation of G protein,second messenger diffusion,closing of Na⁺ channels

Question

Quizplus · Accepted Answer

Photon absorption activates rhodopsin, which then activates a G protein. This leads to the diffusion of a second messenger, ultimately resulting in the closing of Na⁺ channels.

Which Is the Correct Order of the Series of Reactions