- They increase surface area
- For absorption of the products of digestion
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DIGESTION QUESTIONS |
| The diagram below shows the human digestive system. | |||
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| a | Name the structures labeled. | ||
| (i) | C: oesophagus | (1) | |
| (ii) | A: liver | (1) | |
| b | Give the letter of a structure where the following are produced | ||
| (i) | Amylase: X or E | ||
| (ii) | Maltase: F | ||
| (iii) | Bile: A | (3) | |
| The diagram below shows the structure of the small intestine | |||
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| c | Name the structures labeled. | ||
| (i) | A: villi | (1) | |
| (ii) | B: microvilli | (1) | |
| d | Explain what their significance is | ||
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(2) | ||