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6. What is mainly absorbed in the large intestine?

  • digested food
  • water
  • fibre

7. Where is most digested food absorbed?

  • in the gullet
  • in the small intestine
  • in the stomach

8. What is produced when proteins are digested?

  • fatty acids and glycerol
  • amino acids
  • sugars

9. What does lipase digest?

  • proteins
  • fats
  • carboyhdrates

10. What gives the small intestine a large surface area?

  • villi
  • lots of loops of intestine
  • thin walls

11. When faeces are passed out of the body, this is called:

  • egestion
  • ingestion
  • indigestion

12. Approximately what proportion of deaths in the UK from lung cancer are caused by smoking?

  • 80%
  • 10%
  • 25%

13. What is the addictive substance in tobacco smoke?

  • nicotine
  • tar
  • carbon monoxide

14. One of the main substances in tobacco smoke that causes cancer is:

  • carbon dioxide
  • tar
  • carbon monoxide

15. Which statement about drugs is correct?

  • alcohol and tobacco are legal drugs.
  • all drugs are medicines.
  • most drugs have no effect on the body.

16. How long is the digestive system

  • 10m
  • 8 m
  • 9m

17. how long is the small intestine

  • 9m
  • 10m
  • 11m