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Cambridge IGCSE Biology

7.5Absorption

Absorption in Cambridge IGCSE Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic13 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 7.5.1State that nutrients are absorbed in the small intestine and that most water is absorbed there, with some absorbed in the colon.
  2. 7.5.2Supplement: explain how villi and microvilli increase the surface area of the small intestine, describe the structure of a villus and the roles of its capillaries and lacteal.

Lessons

  • Absorption and assimilation

    20 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Absorption: sample question

1 mark

In which part of the alimentary canal is most of the water in the gut absorbed?

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