CAIE IGCSE Biology 7.4.1 Chemical digestion as the breakdown
CAIE IGCSE Biology 7.4.1 Chemical digestion as the breakdown
Practise defining chemical digestion and using diagrams or tubing models to link molecular size, solubility and absorption.
How this is tested
- define chemical digestion as large insoluble molecules becoming small soluble molecules
- explain why small soluble products can cross membranes into the blood
- interpret diagrams or dialysis tubing results as digestion followed by absorption