pptx, 2.99 MB
pptx, 2.99 MB

This detailed lesson introduces ATP as the body’s energy store and explains how PC, glycogen and fat are sources for its re-synthesis during exercise. The engaging PowerPoint has been designed to cover the second part of point 1.4.3 as detailed in the Edexcel A-level PE specification.

The lesson begins by challenging the students to recognise that the link between muscle contraction, active transport and the conduction of electrical impulses is the need for energy. A number of quick quiz competitions are used throughout the lesson to maintain engagement and to introduce key terms and values and the first quiz round will result in the students meeting adenosine tri-phosphate (ATP). Time is taken to describe the structure of this energy store and to explain how it will be broken down into ADP and a phosphate and that this mechanism results in the release of energy for muscle contraction. Importantly, students will learn that the ATP stored in muscles will only allow for the first few seconds of contraction and therefore if exercise and contraction are to continue, the ATP will need to be re-synthesised. The main part of the lesson explores how phosphocreatine, glycogen and fats are sources for this re-synthesis. Key details about each of these sources are provided and explained and links are made to upcoming lessons on the energy pathways as well as to topics already covered such as the different types of muscle fibres. The final round of the quiz, which is called “What’s your SOURCE?” acts a final understanding check as the teams of students have to recognise one of the 4 energy sources based on a description.

This lesson has been specifically written to tie in with the next lessons on the ATP-PC, glycolytic and aerobic pathways.

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