Chedrese– Week 5-7 Flashcards
1
Q
Photoreceptors (rods and cones) in the light are in which state?
A
Na+ channels close, hyperpolarize the cell and glutamate is not released at the synaptic terminal
2
Q
What is relationship between light and glutamate in the eye?
A
Light reduces secretion of glutamate
3
Q
Where does vision begin?
A
The photoisomerization of retina; when cis-retinal absorbs a photon, it is isomerized to trans-retinal
