Understandings:
  • Light-dependent reactions take place in the intermembrane space of the thylakoids.
  • Light –independent reactions take place in the stroma.
  • Reduced NADP and ATP are produced in the light-dependent reactions.
  • Absorption of light by photosystems generates excited electrons
  • Photolysis of water generates electrons for use in the light-independent reactions.
  • Transfer of excited electrons occurs between carriers in thylakoid membranes.
  • Excited electrons from Photosytem II are used to contribute to generate a proton gradient.
  • ATP synthase in thylakoids generates ATP using the proton gradient.
  • Excited electrons from Photosytem I are used to reduce NADP.
  • In the light-independent reaction a carboxylase catalyzes the carboxylation of ribulose-bisphosphate.
  • Glycerate 3-phosphate is reduced to triose phosphate using a reduced NADP and ATP.
  • Triose phosphate is used to regenerate RuBP and produce carbohydrates.
  • Ribulose bisphosphate is reformed using ATP.
  • The structure of the chloroplast is adapted to its function in photosynthesis.
Applications:
  • Calvin's Experiment to elucidate the carboxylation of RuBP
Skills:
  • Annotation of a diagram to indicate the adaptations of a chloroplast to its function
Nature of Science
  • Developments in scientific research follow improvements in apparatus- sources of 14C and autoradiography enabled Calvin to elucidate the pathways of carbon fixation.
Powerpoints
photosynthesis_2017_3.pptx
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light_20dependent_20reaction_20.pdf
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8.3_practice.pdf
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Homeworks
calvin_cycle_pdf.pdf
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