ZIMSEC O-Level Combined Science
7.1.3.3Human digestion and teeth
Human digestion and teeth in ZIMSEC O-Level Combined Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic113 practice questions5 lessons
Overview
Forms 2 and 3.
Learning objectives
What the syllabus expects you to be able to do.
- 7.1.3.3.1Draw and label the alimentary canal and its associated organs, and state their functions.
- 7.1.3.3.2Outline the processes of ingestion, digestion, absorption, assimilation and egestion.
- 7.1.3.3.3Name the types of teeth and their functions.
- 7.1.3.3.4Describe mechanical and chemical digestion and the action of amylase.
- 7.1.3.3.5Identify the end products of digestion.
Lessons
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Absorption and assimilation
20 min
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Chemical digestion and digestive enzymes
18 min
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Enzymes and how they work
24 min
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Teeth and physical digestion
22 min
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The digestive system
18 min
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Sample question
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