1. Intermediate 1 Unit 3c Carbohydrates 123 4567 89 10 111213 14 15 22 23242526 161718192021 27

2. What does a balanced diet provide the body with? All the essential elements and compounds

3. Name the 4 major elements of the human body. Carbon, hydrogen, oxygen and nitrogen

4. Are the elements present in the diet as free elements or as compounds.? Compounds

5. Name the three essential compounds provided by our food? Carbohydrates, fats and proteins

6. How much of our body weight is made up of water? More than 60%

7. What do mineral supply us with? Trace elements

8. What are the trace elements ? Elements needed in small quantities

9. Name two trace elements and say what each one is needed for. Calcium - bones and teeth Iron - blood

10. Why is it dangerous to take trace elements in large quantities? They are toxic

11. What does the body use carbohydrates for? Energy

12. Name the three elements present in a carbohydrate. Carbon, hydrogen and oxygen

13. Name the two groups of carbohydrates. Sugars and starches

14. Which sugar is table sugar? Sucrose

15. Name four sugars. Fructose, glucose, maltose and sucrose

16. What is the test for starch? Iodine solution turns black

17. What colour does Benedict’s solution turn if a sugar is present. From blue to brick red

18. Which sugar cannot be detected with Benedict’s solution? Sucrose

19. Are sugars made from small or large molecules? Small molecules

20. What size of molecule is starch? A large molecule-polymer

21. What do plants convert glucose into for storing energy? Starch

22. What happens to starch during digestion? Broken down into glucose

23. What happens to glucose after it is produced during digestion? It is carried by the blood to body cells where respiration takes place.

24. Name two substances which can break down starch. Enzymes and acid.

25. At what temperature do body enzymes work best at? 37 0 C - body temperature

26. What happens to body enzymes at high temperatures? They are destroyed

27. Which group of carbohydrates are sweet tasting and dissolve in water? Sugars

28. What are carbohydrates made by? Plants

29. Intermediate 1 Unit 3c 123 4567 89 10 1213 14 15 22 232425 26 161718 19 2021 27 11