Welcome to the module on the Digestive System. 

At the end of this module you should be able to; 
1. Describe what the word "digestion" means. 
2. Be able to distinguish between the two types of digestion. 
3. Understand the role of the teeth, tongue and stomach in digestion. 
4. Understand the difference between mechanical and chemical digestion. 
5. Know that digestion involves breaking down large molecules into soluable ones. 
6. Understand what happens to food when it is broken down. 
7. Understand the role of enzymes in digestion.