Key Stage 3
Meaning
A cone is a cell in the eye which can detect colour.
About Cones
- Humans have three different types of cone;
- Blue - Which is sensitive to blue light.
- Red - Which is sensitive to red light.
- Green - Which is sensitive to green light.
Key Stage 4
Meaning
Cones are receptor cells in the eye which can detect colour.
About Cones
- Humans have three different types of cone;
- Blue - Which is sensitive to blue light.
- Red - Which is sensitive to red light.
- Green - Which is sensitive to green light.
- When cone detects light is creates an electrical impulse which is sent down the optic nerve to the brain.