CAIE IGCSE Biology 7.3.2 Physical digestion increases
CAIE IGCSE Biology 7.3.2 Physical digestion increases
Practise linking physical digestion to increased surface area, so enzymes in chemical digestion can act faster on food particles.
How this is tested
- explain how smaller food pieces expose more surface area for digestive enzymes
- link increased surface area to faster chemical digestion without changing food molecules