1. The Need for Food

2. Complete the spider diagram to show how the body uses the energy and building blocks we get from food. Discuss Why do we need food? Notes Food ? ? ? ? ?

4. Activity Ross High Restaurant From the choice of nine food cards on the board select menus of a starter, main course and dessert that will provide: a) the most carbohydrate b) the most protein c) the most fat

5. Carbohydrates Maltose (soluble) Glucose (soluble) G G G G G G Starch (insoluble) G G G G G G G

6. Proteins Peptides Amino acids (soluble) Protein (insoluble)

7. Fats and Oils Fatty Acid Fatty Acid Fatty Acid Glycerol Fat Molecule

8. Notes Carbohydrates Fats Proteins Elements Present Carbon Hydrogen Oxygen Basic Units Glucose/Maltose molecules Diagram Use Energy/ stored energy Copy and complete the table. Help Torrance p113 Success Guide p33

9. Food Groups Carbohydrates Fats Proteins Elements Present Carbon Hydrogen Oxygen Carbon Hydrogen Oxygen Carbon Hydrogen Oxygen Nitrogen Basic Units Glucose/Maltose molecules Fatty acids & glycerol Amino Acids Diagram Use Energy/ stored energy Energy Growth and repair

11. Teeth

13. Omnivore Dentition Incisor Canine Premolar Molar

14. 8 4 8 12 32 Activity Incisor Canine Pre Molar Molar Upper Jaw Lower Jaw Total Incisor Canine Premolar Molar Total 4 4 2 2 4 4 6 6

15. -Label your copies of the above diagrams. -Colour in the four kinds of teeth for each. Activity Have a look at the skulls and see if you can determine their diet. Notes Help Trying finding help in the class books

17. The Digestive System Use the class text books to label and colour your copy of the diagram. (start labelling in pencil if you are unsure) Notes

18. Mouth Salivary Gland Liver Stomach Large Intestine Small Intestine Anus Rectum Pancreas Gall Bladder Oesophagus Tongue

22. Results Write a conclusion for each of the enzymes stating which enzyme group they belong to. Yes/No EnzymeA Starch Digested EnzymeB Protein Digested EnzymeC Fat Digested

23. Now that we have labelled the organs of the digestive system and investigated enzyme groups… Produce a table showing the function of all the organs in the digestive system. Notes Help Success Guide p38 Torrance p121/122

24. Need a Hint? -If a marble was stuck in a hose pipe what would you do to get it out? -What tissue do you think we have in the digestive system that would cause the same effect? Discuss How does food work its way through all the tubes in the digestive tract?

26. Mechanism for Peristalsis Layers of muscle Contraction of muscle Relaxation of muscle Direction of movement Notes

27. Click on the image below to watch the Yakult TV ad: What does ‘planet you’ look like? Why does ‘planet you’ look like this?

29. Villi are finger like folds in the surface of the small intestine Villi

30. The Small Intestine – The Villi Thin epithelium Blood capillary Tiny lymphatic vessel Enzyme secreting gland - Glucose and amino acids are transported in the blood stream. - Fats are transported in the lacteal.

31. The Model Gut Experiment

33. Large Intestine By this point only indigestible material and water remains. The large intestine absorbs water and remaining material is excreted as faeces.

34. Digestive System

35. Check Test 1 mark 3 marks 3 marks 1 mark Q1 Type of Food Carbohydrate a) b) Chemical Elements Carbon c) d) Hydrogen e) f) Nitrogen g) h) i) Basic Units j) k) l) Function m) Source of energy/ insulation n)

38. a) b) d) e) c) 3 marks Q4

39. Q5 Describe the role of the stomach in digestion. 1 mark Q6 Describe how peristalsis pushes food through the digestive system. 1 mark

41. Q8 Give two features of the small intestine which make it efficient for absorption. 2 marks Q9 Which part of the digestion system is the site where most water is removed from the contents. 1 mark

42. Homework Starting tomorrow, record everything you have to drink in a day. Have a separate record sheet for each day and keep recording till next time you are in Biology. Record volumes if possible, if not record if you used a mug/ cup / carton etc.