BIOL 1000 Lecture Notes - Lecture 1: Delocalized Electron, Photoreceptor Cell, Opsin
Document Summary
They contain three different opsins that allow us to see colour (red, green, blue). Colour blindness the result of one or more of these opsins missing: when light hits the retina, it gets absorbed by rod and cone cells. Conjugated system: an alternation of single and double bonds between carbon atoms in a molecule. Opsin: a type of protein with different forms responsible for enabling colour and low-light vision. Rhodopsin: a protein complex consisting opsin proteins and the pigment retinal. Cone cell: photoreceptor cells that are responsible for colour vision. Rod cell: photoreceptor cells that are responsible for low-light vision. Bipolar cell: a type of neuron that receives and sends signals from photoreceptor cells. Ganglion cell: a type of neuron that receives and sends signals from photoreceptor cells. Optic nerve: a central nerve in the eye that transmits visual signals to the brain.
