CAIE IGCSE Biology 7.4.2 Role of Chemical Digestion

Practise explaining why chemical digestion converts large insoluble food molecules into products that are small and soluble enough to cross the intestinal wall.

Exam points

state that chemical digestion converts large food molecules into smaller molecules
explain that digestion changes insoluble food molecules into soluble products
link small soluble products to movement across the intestinal wall during absorption

[Maximum number: 3]

Describe the role of chemical digestion.

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7.4.2—Role of chemical digestion question 1