CAIE IGCSE Biology EXTENDED 14.2.8 Function of rods & cones
CAIE IGCSE Biology EXTENDED 14.2.8 Function of rods & cones
Practise linking rods and cones to night vision, colour vision and light intensity using eye diagrams, MCQs and retina data.
How this is tested
- distinguish rods from cones by low-light sensitivity and colour detection
- apply rod and cone functions to nocturnal mammals and low-light vision contexts
- use fovea or retina diagrams to link high cone concentration with good colour vision