| Biology demonstration manual |
Class: 6Ã¨me, 5Ã¨me. 3Ã¨me
Lesson: La nutrition des vertÃ©brÃ©s/ Les champignons/L'appareil digestif
Rationale: Use the enzymes in papaya to demonstrate enzyme actions.
a few pieces of raw meat
plastic/ rubber band
1. Fill a glass or small bowl with mashed up papaya or papaya juice.
2. Add a few pieces of raw meat. Avoid fat and gristle.
3. Cover with plastic.
4. After 2 or 3 days dump out the papaya-meat mixture into a bowl. All the meat will have been broken down by the enzymes in the papaya.
Source: B. Cole