Question

Decide if these retinal events occur in the dark or in the light. Rods continuously release the neurotransmitter glutamate. Glutamate inhibits the bipolar cells that synapse with the rods. The bipolar cells do not stimulate the ganglion cells. Activated rhodopsin inhibits the product on of glutamate by rods. The bipolar cells stimulate the ganglion cells. Action potentials are transmitted out of the optic nerve.

Answer 1

1. Rods continously release the neurotransmitter in the dark, as they depolarise

.2.Glutamate inhibits bipolar cells that synapse with rods in the dark

3. The bipolar cells donot stimulate the ganglion cells in the dark

4.Activated rhodopsin inhibits the production of glutamate, in presence of light

5.Bipolar cells stimulate ganglion cells in presence of light

6. Action potentials are transmitted out of the optic nerve in light