Photosynthesis PAG

- The vast majority of you have now completed the PAG
- The write up is due IN FULL by the final Friday of half term (19th October)


See summary of what is required below. Please see me if you need any support WELL IN ADVANCE of the deadline







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Lesson 1 summary

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Topics covered today: - GCSE photosynthesis recap including key words - Structure of a chloroplast - The light dependent stage of photosynthesis including location and products HOMEWORK - complete the table comparing cyclic and non-cyclic photophosphorylation AND read up on the processes so you are ready to discuss and answer questions. MINI QUIZ TOPIC FOR NEXT LESSON - ENZYMES!
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Lesson 4 summary - Limiting factors

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- Whiteboard recap of key words relating to light dependent stage - Whiteboard recap of light independent stage including the terms "carbon fixation step" - Analysis of graphs showing the relative abundances of GP and TP in light and dark conditions: - GP increases because the conversion of GP to TP requires the products of the light dependent reactions - The carbon fixation step DOES NOT require these products and hence the levels of RuBP drop Photosynthetic pigments - Explanation of the need for additional photosynthetic pigments using the idea of red seaweed as an example Limiting Factors - Identification of temperature, light intensity and carbon dioxide concentration as the main limiting factors of photosynthesis MINI TEST TOPIC - Classification and Evolution
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Control of blood glucose lesson

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- Recap of the structure and function of adrenal glands including location (above the kidneys), different regions and the functions of different regions - LEARN! - Recap of the role of hormones in negative feedback - every hormone is released from a specific gland and travels in the blood around the entire body. The hormone is detected by certain TARGET CELLS and an EFFECT is produced - Control of blood glucose is regulated by the hormones GLUCAGON and INSULIN - They are released from the ISLETS OF LANGERHANS in the pancreas - Glucagon is released when blood glucose levels fall. It effects the liver and results in an INCREASE in the concentration of blood glucose - Insulin is released when blood glucose levels rise. It effects the liver and results in a DECREASE in the concentration of blood glucose New associated key words:  GLUCONEOGENESIS: Production of new glucose in the liver and muscle cells from lipid molecules. Stimulated by GLUCAGON GLYCOGEN...
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