How do cells use the food molecules absorbed after digestion?
Activities Ask pupils for their ideas about why the body needs food, reminding them of work done in unit 8A ‘Food and digestion’. Explain that this unit will concentrate on how cells release energy for growth, synthesis of new materials and body heat. Outcomes identify that the body needs food for growth, synthesis of new materials, production of body heat Objectives that products of digestion are transported in the blood to other parts of the body Points to note This activity is designed to find out what pupils know about the products of digestion and how the body makes use of these. Teachers will need to bear this in mind in later work. Section 2: b. How do cells use the food molecules absorbed after digestion? Activities Ask pupils about ‘high energy’ drinks, who uses them and what they contain, and provide pupils with secondary sources of information. Establish that glucose is a major constituent of such drinks/foods and ask pupils to relate this to what they learnt about digestion
