This detailed, concise lesson describes and explains how the electron transport chain and chemiosmosis are involved in the synthesis of ATP by oxidative phosphorylation. The PowerPoint has been designed to cover point 7.6 of the Pearson Edexcel A-level Biology A (Salters Nuffield) specification and also looks at the role of the enzyme, ATP synthase.
The lesson begins with a discussion about the starting point of the reaction. In the previous stages, the starting molecule was the final product of the last stage but in this stage, it is the reduced coenzymes which release their hydrogen atoms. Moving forwards, the process of oxidative phosphorylation is covered in 7 steps and at each point, key facts are discussed and explored in detail to enable a deep understanding to be developed. Students will see how the proton gradient is created and that the flow of protons down the channel associated with ATP synthase results in a conformational change and the addition of phosphate groups to ADP. Understanding checks are included throughout the lesson to enable the students to assess their progress.
This lesson has been written to tie in with the other uploaded lessons on glycolysis, the Link reaction and Krebs cycle and anaerobic respiration.
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Photosynthesis & Respiration (Edexcel A-level Biology A)
Photosynthesis and respiration are two of the most commonly assessed topics in A-level exams but are often poorly understood by students. These 9 lessons have been intricately planned to contain a wide range of activities that will engage and motivate the students whilst covering the key detail to try to deepen their understanding and includes exam-style questions so they are fully prepared for these assessments. The following specification points in topics 5 and 7 of the Pearson Edexcel A-level Biology A (Salters Nuffield) specification are covered by these lessons: * Understand the overall reaction of photosynthesis * Understand the light-dependent reactions of photosynthesis including the role of these electrons in generating ATP, reducing NADP in photophosphorylation and producing oxygen through photolysis of water * Understand the light-independent reactions as reduction of carbon dioxide using the products of the light-dependent reactions * Know that the products are simple sugars that are used by plants, animals and other organisms in respiration and the synthesis of new biological molecules * Understand the structure of chloroplasts in relation to their role in photosynthesis * Understand the overall reaction of aerobic respiration * Understand that respiration is a many-stepped process with each step controlled and catalysed by a specific intracellular enzyme * Understand the roles of glycolysis in aerobic and anaerobic respiration * Understand the role of the link reaction and the Krebs cycle in the complete oxidation of glucose and formation of carbon dioxide, ATP, reduced NAD and reduced FAD * Understand how ATP is synthesised by oxidative phosphorylation * Understand what happens to lactate after a period of anaerobic respiration in animals If you would like to sample the quality of the lessons in this bundle then download the light independent reactions, the link reaction and Krebs cycle and the fate of lactate lessons as these have been shared for free
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Topic 7: Run for your life (Pearson Edexcel A-level Biology A)
This bundle contains 17 fully-resourced lessons which have been designed to cover the content as detailed in topic 7 (Run for your life) of the Pearson Edexcel A-Level Biology A (Salters Nuffield) specification. The specification points that are covered within these lessons include: * The interaction of muscles, tendons, ligaments and the skeleton in movement * The contraction of skeletal muscle by the sliding filament theory * The overall reaction of aerobic respiration * The enzymes involved in the multi-stepped process of respiration * The roles of glycolysis in aerobic and anaerobic respiration * The role of the link reaction and the Krebs cycle in the complete oxidation of glucose * Understand how ATP is synthesised by oxidative phosphorylation * The fate of lactate after a period of anaerobic respiration * The myogenic nature of cardiac muscle * The coordination of the heart beat * The use of ECGs to aid diagnosis * Calculating cardiac output * The control of heart rate by the medulla oblongata * The control of ventilation rate * The structure of a muscle fibre * The structural and physiological differences between fast and slow twitch muscle fibres * The meaning of negative and positive feedback control * The principle of negative feedback in maintaining systems within narrow limits * The importance of homeostasis to maintain the body in a state of dynamic equilibrium during exercise * DNA transcription factors, including hormones The lessons have been planned so that they contain a wide range of activities and numerous understanding and prior knowledge checks so students can assess their progress against the current topic as well as be challenged to make links to other topics within topic 7 and earlier topics If you would like to see the quality of the lessons, download the link reaction and Krebs cycle, the fate of lactate,the using ECGs and transcription factors lessons as these have been uploaded for free
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Another great resource. Thank you again for sharing.
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