Biology·Organisation & maintenance · NSSCO 3.6.2.2
The alimentary canal
Narrated lesson · press play
Follow food on its journey through the gut — the four processes of nutrition, the job of each part from mouth to anus, and how the cholera bacterium's toxin causes deadly diarrhoea.
What you'll learn in this lesson
By the end you should be able to (NSSCO Biology 3.6.2.2):
- Define ingestion, digestion, absorption and egestion
- Describe the functions of the parts of the alimentary canal
- Describe cholera as a disease caused by a bacterium and explain how its toxin causes diarrhoea
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