This concise, engaging revision lesson has been designed to include activities that will motivate the students whilst they assess their understanding of topic B3 (Biological molecules) of the CIE IGCSE Combined Science specification. An understanding of biological molecules is fundamental to the understanding of a lot other Biology topics and this lesson has attempted to make the links between the different areas.
The range of activities which include exam questions, quick tasks and quiz competitions have been written to cover as much of the content as possible but the following topics have received particular attention:
- The chemical elements in carbohydrates
- The formation of starch and glycogen from glucose
- The iodine test for starch
- Lipids are formed of fatty acids and glycerol
- Investigational skills
- The ethanol emulsion test for lipids
This resource includes a PowerPoint (27 slides) and a worksheet with a task about the digestion of milk fat so students can recognise the components of lipids
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