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O-LevelBiologyHuman Nutrition5090/12 · Oct/Nov 2020 · Q91 Mark

What is the main function of the villi in the ileum?

Ato increase the surface area for absorption
Bto move digested food along the intestine by peristalsis
Cto produce mucus so that materials can move smoothly
Dto secrete amylase to digest starch in the food

✓ Correct answer

A: to increase the surface area for absorption

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About this question

Topic
Human Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2020 Paper 1 Variant 2, question 9.

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