1. Why does the small intestine have a large surface area?
- Its lining is folded and it contains villi which contain microvilli
- Its lining is unfolded and it contains villi which contain microvilli
- Its lining is folded and it contains enzymes
- Its lining is unfolded and it contains enzymes
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Other questions in this quiz
2. What enzyme breaks down carbohyrates?
3. What is the optimum pH of the protease enzyme?
- pH 10
- pH 7
- pH 5-6
4. What is the pH of bile? Why is this good for the enzymes?
- Alkaline- neutralises acid to make the conditions right for enzymes
- Acid- gives enzyme a greater surface area to work on
- Acid- helps to contribute to the low pH in the stomach
- Alkaline- helps the mouth chew more food
5. Where does the protease enzyme break down proteins?
- Mouth and small intestine
- Large intestine
- Stomach and small intestine
- Small intestine