2006-09-16 12:02:01 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Biology
It would require several pages to explain it in detail especially since I don't know your background (high school, university)
You will find a very good and detailed analysis in "Biochemistry" by L. Stryer 4th edition.
In summary: There is a a photosensitive protein in the receptor cells. When it absorbs a photon its conformation changes and activates an enzymatic cascade. This leads to a hyperpolarization of the plasma mebrane which is transmitted near the region of the cell that is close to the synapse (synaptic body) and then the signal is passed to the neuron.
2006-09-16 23:35:45 · answer #1 · answered by bellerophon 6 · 0⤊ 0⤋
The eye's photo-receptors are called "retinal ganglion cells."
2006-09-16 12:09:11 · answer #2 · answered by Jay 6 · 0⤊ 0⤋
The main protein involved in it is Rhodopsin.
2006-09-16 12:12:05 · answer #3 · answered by Ellie 4 · 1⤊ 0⤋
transduction mechanism
2006-09-16 12:20:52 · answer #4 · answered by starewq 3 · 0⤊ 0⤋
photosensitive cells called rods and cones - cones for colour and rods for black and white.
2006-09-20 12:10:07 · answer #5 · answered by myfairladyisasleep 2 · 0⤊ 0⤋