Biology A-Level
colour vision
What colour vision means in Biology A-Level, as defined for AQA.
Definition of colour vision
Check what you remember
Read the wording for your board, then hide it and explain colour vision in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Three cone types with different optical pigments allow colour perception, depending on the relative stimulation of the three cone types.
Topics that use colour vision
- Receptors (A-level only) (AQA A-Level)
Related terms
- deformation
- depolarisation
- generator potential
- receptor specificity
- spatial summation
- stretch-mediated sodium ion channels
- transduction
- visual acuity
Using colour vision in the exam
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