This lesson describes how the products of the light-independent reactions of photosynthesis are used by plants, animals and other organisms. The engaging and detailed PowerPoint and accompanying resources have been primarily designed to cover point 5.4 (ii) of the Edexcel International A-level Biology specification concerning the uses of GP and GALP but as the lesson makes continual references to biological molecules, it can act as a revision tool for a lot of the content of topic 1 and 2.
The previous lesson described the light-independent reactions and this lesson builds on that understanding to demonstrate how the intermediates of the cycle, GP and GALP, are used. The start of the lesson challenges the students to identify two errors in a diagram of the cycle so that they can recall that most of the GALP molecules are used in the regeneration of ribulose bisphosphate. A quiz version of Pointless runs throughout the lesson and this is used to challenge the students to recall a biological molecule from its description. Once each molecule has been revealed, time is taken to go through the details of the formation and synthesis of this molecule from GALP or from GP in the case of fatty and amino acids. The following molecules are considered in detail during this lesson:
- glucose (and fructose and galactose)
- sucrose
- starch and cellulose
- glycerol and fatty acids
- amino acids
- nucleic acids
A range of activities are used to challenge their prior knowledge of these molecules and mark schemes are always displayed for the exam-style questions to allow the students to assess their understanding.
As detailed above, this lesson has been specifically written to tie in with the earlier lessons in this topic on the structure of the chloroplast and the light-dependent and light-independent reactions of photosynthesis
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Topic 5: Energy Flow, Ecosystems and the Environment (Edexcel International A-level Biology)
As the first topic to be taught at the start at the second year of the Edexcel International A-level Biology course, topic 5 is very important and the content includes the key reaction of photosynthesis. All 11 lessons included in this bundle are highly detailed and have been filled with a wide variety of tasks which will engage and motivate the students whilst covering the following specification points: * The overall reaction of photosynthesis * The phosphorylation of ADP and the hydrolysis of ATP * The light-dependent reactions of photosynthesis * The light-independent reactions of photosynthesis * The products of the Calvin cycle * The structure of the chloroplasts and the role of this organelle in photosynthesis * The absorption spectrum and action spectrum * Separating chloroplast pigments using chromatography and identifying them using retention factor values * Be able to calculate net primary productivity * Know the relationship between NPP, GPP and R * Understand the meaning of the terms ecosystem, community, population and habitat * The numbers and distribution of organisms in a habitat are controlled by biotic and abiotic factors * The concept of niche * The effect of temperature on the rate of enzyme activity and the calculation of the Q10 * Isolation reduces gene flow and leads to allopatric and sympatric speciation If you would like to sample the quality of the lessons in this bundle, then download the products of photosynthesis and succession lessons as these have been uploaded for free
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Photosynthesis & Respiration (Edexcel Int. A-level Biology)
Photosynthesis and respiration are two of the most commonly assessed topics in A-level exams but these questions are sometimes poorly answered by students due to a lack of understanding or an inability to apply their knowledge. With this in mind, these 8 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 Edexcel International A-level Biology 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 If you would like to sample the quality of the lessons in this bundle then download the products of photosynthesis lesson as this has been shared for free
£12.00
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