Use your files and Collins Connect/textbook for these topics;

• Food groups, their uses and good sources of each (pages 50/51)

• Energy needs (pages 54/55)

• Deficiency diseases (pages 58/59)

• The locations and functions (jobs) of the digestive system organs (pages 60/61 and 64/65)

• Food tests for starch, sugar, protein and fats: the chemicals used for each and the positive result (pages 52/53)

• Digestive enzymes (pages 68/69)

• How gases are exchanged in the lungs, including adaptations of the alveoli and diffusion (pages 76/77/79)

• Measuring breathing (page 74)

• Respiration vs breathing (page77)

Use the Century nuggets on digestion and Energy from food to practice your short answers.