CAIE IGCSE Biology 14.2.4 Pupil reflex
CAIE IGCSE Biology 14.2.4 Pupil reflex
Practise explaining how the pupil reflex changes pupil diameter when light intensity changes between bright and dim conditions.
How this is tested
- predict pupil size when a person moves between bright light and darkness
- describe pupil constriction in bright light using the iris and muscle changes
- interpret diagrams showing iris and pupil appearance under different light intensities