The EYE Flashcards
1
Q
what type of light intensity do rods detect?
A
low light intensity
2
Q
what is retinal convergence?
A
-rhodopsin needs to be broken down by light intensity, to create a generator potential
3
Q
why cant rods detect between different wavelengths of light only black and white?
A
due to retinal convergence
when many rods are connected to one neurone
4
Q
what are the 3 types of cone cells?
A
- they all contain different iodopsin pigemnts
red, green, blue
5
Q
how do we perceive colour images?
A
-depending on the proportion of each cone
6
Q
how is iodopsin broken down?
A
broken down by high light intensity, so action potential can only be created with enough light
