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Digestive System - Answers |
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- List, in correct order, the passage of food through the digestive system
- Mouth
- Oesophogus
- Stomach
- Small intestine
- Large intestine
- What are the mechanical and chemical functions of the stomach?
- The mechanical function is contraction of the smooth muscle in the stomach wall which acts to churn the food
- The chemical function is the presence of enzymes and gastric acid to break down the food
- What is the function of Bile and where is it released?
- Bile is released into the small intestine from the gall bladder. Bile dissolves fat.
- What is the function of the villi and where are they found?
- The villi are found in the small intestine and their function is to increase the inner surface area of the intestine making it easier for molecules of digested food to pass through
- Where do the required nutrients go to from the small intestine?
- They pass through the small intestine wall into the capillaries which surround the intestine
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