Biology · IGCSE · Cambridge · Cambridge IGCSE (9–1) Biology 0970 (Extended) (2026–2028) · Specification point · 7.3 · Human nutrition
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7.3 Physical digestion
| Core | Supplement |
|---|---|
1 Describe physical digestion as the breakdown of food into smaller pieces without chemical change to the food molecules | |
2 State that physical digestion increases the surface area of food for the action of enzymes in chemical digestion | |
3 Identify in diagrams and images the types of human teeth: incisors, canines, premolars and molars | |
4 Describe the structure of human teeth, limited to: enamel, dentine, pulp, nerves, blood vessels and cement, and understand that teeth are embedded in bone and the gums | |
5 Describe the functions of the types of human teeth in physical digestion of food |
6 Describe the function of the stomach in physical digestion |
7 Outline the role of bile in emulsifying fats and oils to increase the surface area for chemical digestion |