The Digestive System

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Across
  1. 2. This disease is caused by a lack of protein.
  2. 5. These are obtained from the food that we eat.
  3. 9. These foods are the body's preferred energy source
  4. 12. These are the smaller substances used to make proteins
  5. 13. These are responsible for chemical digestion.
  6. 15. This disease is caused by a lack of Vitamin C.
  7. 17. These are responsible for mechanical digestion.
  8. 18. Digestion begins here
  9. 20. Water is absorbed here.
  10. 21. This is responsible for ripping tough foods.
Down
  1. 1. These foods build muscles and repair damaged tissues.
  2. 3. This is the undigested waste from the body.
  3. 4. The type of acid produced by the stomach.
  4. 6. The number of milk teeth humans have.
  5. 7. These crush ang grind foods.
  6. 8. The muscular tube connecting the mouth to the stomach.
  7. 10. Cannot be digested but helps to prevent constipation.
  8. 11. Food is absorbed into the blood here.
  9. 14. This disease is caused by a lack of Vitamin A.
  10. 16. This word describes a diet that has all the nutrients in the correct proportions.
  11. 19. An enzyme in saliva that breaks down starch.