This fully-resourced lesson describes the reactions of the light independent stage of photosynthesis that takes place in the chloroplast stroma. The detailed PowerPoint and accompanying resources have been designed to cover points 5.7 (iv, v & vi) of the Edexcel A-level Biology B specification and lengthy planning has ensured that links are continually made to the previous lesson on the light-dependent stage so that students can understand how the products of that stage are essential for the Calvin cycle
The lesson begins with an existing knowledge check where the students are challenged to recall the names of structures, substances and reactions from the light-dependent stage in order to reveal the abbreviations of the main 3 substances in the light-independent stage. This immediately introduces RuBP, GP and GALP and students are then shown how these substances fit into the cycle. The main section of the lesson focuses on the three phases of the Calvin cycle and time is taken to explore the key details of each phase and includes:
- The role of RuBisCO in carbon fixation
- The role of the products of the light-dependent stage, ATP and reduced NADP, in the reduction of GP to GALP
- The use of the majority of the GALP in the regeneration of RuBP
A step-by-step guide, with selected questions for the class to consider together, is used to show how 6 turns of the cycle are needed to form the GALP that will then be used to synthesise 1 molecule of glucose. A series of exam-style questions are included at appropriate points of the lesson and this will introduce limiting factors as well as testing their ability to answer questions about this stage when presented with an unfamiliar scientific investigation. The mark schemes are included in the PowerPoint so students can assess their understanding and any misconceptions are immediately addressed.
This lesson has been specifically written to tie in with the previous lessons on the structure of a chloroplast and the light-dependent stage as well as upcoming lessons on the synthesis of organic molecules from GALP and limiting factors
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Topic 5: Energy for biological processes (Edexcel A-level Biology B)
Respiration and photosynthesis are two of the most important biological processes, which can be poorly understood by students but unsurprisingly are commonly assessed in the terminal exams. These 11 lessons have been intricately planned so that they contain a wide range of activities that will engage the students whilst covering the key detail to try to deepen their understanding and include exam-style questions so they are prepared for the assessments. The following specification points in topic 5 of the Edexcel A-level Biology B course are covered by these 11 fully-resourced lessons: * Cellular respiration yields ATP * The different stages of aerobic respiration * The conversion of glucose to pyruvate during glycolysis * The mitochondrial matrix as the site of the Link reaction and Krebs cycle * The production of carbon dioxide, reduced NAD and ATP in the Krebs cycle * Oxidative phosphorylation * The yield of ATP from anaerobic respiration * The production of lactate in mammalian muscles * Ethanol formation in plants * The meaning of the absorption and action spectra * The reason for a variety of photosynthetic pigments in plants * The structure of the chloroplasts * The role of thylakoid membranes in the light-dependent stage * The process of cyclic and non-cyclic photophosphorylation * The use of reduced NADP and ATP in the Calvin cycle * Understand how GALP is used as a raw material in the production of monosaccharides, amino acids and other molecules * Factors that limit photosynthesis including carbon dioxide, light intensity and temperature Due to the detail of these lessons, it is estimated that it will take in excess of a month of A-level lessons to cover these lessons If you would like to sample the quality of the lessons, download the link reaction, Krebs cycle and light-independent stage lessons as these have been shared for free
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Topic 5.7: Photosynthesis (Edexcel A-level Biology B)
This bundle contains 5 fully-resourced and highly-detailed lessons which build on the students knowledge of photosynthesis from GCSE and add the fine detail that is critical when tackling questions on this topic in the A-level exams. The lesson PowerPoints and accompanying resources are filled with a wide range of activities that will engage, motivate and challenge the students whilst the detail of the following specification points in topic 5.7 of the Edexcel A-level Biology B course are covered: * The structure of the chloroplast * The role of the thylakoid membranes in the light-dependent stage of photosynthesis * The processes of cyclic and non-cyclic photophosphorylation * The role of the stroma in the light-independent stage * The fixation of carbon dioxide * The use of ATP and reduced NADP from the light-dependent stage in the Calvin cycle * The use of GALP as a raw material * The factors that limit photosynthesis If you would like to sample the quality of these lessons, then download the light-independent stage lesson as this has been shared for free
£8.00
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