This fully-resourced lesson looks at the process and site of the Krebs cycle and explains the importance of decarboxylation, dehydrogenation, the reduction of NAD and FAD and substrate level phosphorylation. The engaging and detailed PowerPoint and accompanying resource have both been designed to cover point 5.2.2 (e) of the OCR A-level Biology A specification and includes the formation of citrate from the acetyl group of acetyl CoA and oxaloacetate and the regeneration of this four carbon molecule.
The lesson begins with a version of the Impossible game where students have to spot the connection between 8 of the 9 terms and will ultimately learn that this next stage is called the Krebs cycle. The main part of the lesson challenges the students to use descriptions of the main steps of the cycle to continue their diagram of the oxidation-reduction reactions. Students are continually exposed to key terminology such as decarboxylation and dehydrogenation and they will learn where carbon dioxide is lost and reduced NAD and FAD are generated. They will also recognise that ATP is synthesised by substrate level phosphorylation. The final task challenges them to apply their knowledge of the cycle to work out the numbers of the different products and to calculate the number of ATP that must be produced in the next stage if the theoretical yield of 32ATP is to be achieved.
This lesson has been designed to tie in with the other uploaded lessons on glycolysis, anaerobic respiration, the Link reaction, oxidative phosphorylation and respiratory substrates
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Module 5.2: Photosynthesis & Respiration (OCR A-level Biology A)
Photosynthesis and respiration are two of the most commonly-assessed topics in the terminal A-level exams but are often poorly understood by students. These 16 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 prepared for these assessments. The following specification points in modules 5.2.1 and 5.2.2 of the OCR A-level Biology A course are covered by these lessons: * The structure of a chloroplast and the sites of the two main stages of photosynthesis * The importance of the photosynthetic pigments * Using thin-layer chromatography to separate photosynthetic pigments * The light-dependent stage of photosynthesis * The fixation of carbon dioxide and the light-independent stage of photosynthesis * The uses of triose phosphate * Factors affecting photosynthesis * The need for cellular respiration * The structure of the mitochondrion * The process and site of glycolysis * The link reaction and its site in the cell * The process and site of the Krebs cycle * The importance of coenzymes in cellular respiration * The process and site of oxidative phosphorylation * The chemiosmostic theory * The process of anaerobic respiration in eukaryotes * The relative energy values of carbohydrates, lipids and proteins as respiratory substrates * The use of the respiratory quotient Due to the detail of these lessons, it is estimated that it will take in excess of 2 months of A-level lessons to cover this module If you would like to sample the quality of the lessons, download the uses of triose phosphate, link reaction and respiratory substrates lessons as these have been shared for free
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Module 5.2.2: Respiration (OCR A-level Biology A)
All 9 of the lessons included in this bundle are fully resourced and have been designed to cover the detailed content of module 5.2.2 (Respiration) of the OCR A-Level Biology A specification. The following specification points are covered by this bundle of lessons: * The need for cellular respiration * The structure of the mitochondrion * The process and site of glycolysis * The link reaction and its site in the cell * The process and site of the Krebs cycle * The importance of coenzymes in cellular respiration * The process and site of oxidative phosphorylation * The chemiosmotic theory * The process of anaerobic respiration in eukaryotes * The difference in the relative energy values of carbohydrates, lipids and proteins * The use and interpretation of the respiratory quotient All of the lessons are detailed and engaging and contain regular progress checks so that students can assess their understanding of the current topic as well as prior knowledge checks to enable links between topics and modules to be seen It is estimated that these lessons will cover in excess of a month's A-level Biology teaching time
£13.50
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