1. MAN AND FOOD

2. LEARNING OBJECTIVES Know what your body is made of Know main nutrients Know 3 main functions of food

3. MINDMAP Take 5 minutes to make a MindMap about food and nutrients, include everything you now about it! Human body Food Nutrients healthy unhealthy Proteins, fat, carbohydrates Vitamins, minerals Water Roughage to much fat Fast food Too much sugar, sweets, to much meat... proteins fruits, vitamins vegetables fish, milk products is made of Water Protein Lipids/fat

4. W HAT MATERIALS IS YOUR BODY MADE OF ? Hair? Fingernails? Cell membranes? Enzymes? Tendons? Muscles Hormones? Cartilage? (Knorpel)

5. W HY EAT ?

6. 3 MAIN FUNCTIONS OF FOOD Provides energy Provides substances which keep us healthy Provide building blocks ( Bausteine ) for growth and repair

7. W HAT DOES FOOD CONTAIN ?

8. MAIN NUTRIENTS Carbohydrates (different sugars) Fat (glycerol and fatty acids) Protein (amino acids) Vitamins Minerals Water Roughage/dietary fibre (Ballaststoffe) Note: in German there are 3 main nutrients: fat, carbohydrates and protein. Vitamins, minerals, water and roughage are not seen as “Nährstoffe” in German!

9. LEARNING OBJECTIVES What is your body made of? What are the main nutrients? What are the functions of food?

11. OBJECTIVES Testing for lipids, proteins and carbohydrates in food Be able to conduct and document your experiments adequately Know the building blocks of lipids, proteins and carbohydrates

12. E XPERIMENTS Work in small groups of 3 Read instructions carefully before you begin! To document your work adequately write down your HYPOTHESIS in a table first. After conducting each experiment, write down the RESULTS and make a table for your CONCLUSIONS.

13. C ONCLUSIONS Fatmonosacchari des Polysacchari des (starch) Rice-Yes Pasta-Yes OreoYes-- Oreo fillingYes - CheeseYes-- HamYes - OilYes--

14. L IPIDS Lipids are build of fatty acids and glycerol. Lipids are a much better energy source than carbohydrates. You can find them in...

15. C ARBOHYDRATES Monosaccharide simple sugars: e.g. glucose, fructose (C 6 H 12 O 6 ) energy source in cells during cellular respiration build cell structures and other organic molecules within the cells Disaccharide composed of two monosaccharides joined together Sucrose (table sugar): one glucose and one fructose molecule

16. C ARBOHYDRATES Polysaccharide long chains of monosaccharides bond together starch: polysaccharide composed of long chains of glucose plants store excess glucose in the form of starch animals (and humans) store excess glucose in the form of glycogen in the liver and muscles cellulose: makes up the cell wall of plants

17. P ROTEIN Proteins are build of amino acids. There are 20 different amino acids. Different proteins have different compositions of amino acids. You find protein in...