1. Chapter 2 ( Part 1 ) - Nutrition

4. 2.1 – The importance of taking good nutrition & practising good eating habits

7. The amount of chemical energy stored in food is called its calorific value.

19. body size

20. age

21. sex

22. state of health

26. The body size of a person depends on the number of cells in the person's body. When the number of cells in the body increases, the body size gets bigger. As every body cell requires energy to function properly and stay alive, a person with a larger body size will have a higher calorie requirement.

29. This is because children and teenagers undergo rapid growth and have high metabolic rates.

65. E.C.G I.C.U

66. Life and death