Photosynthesis

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  • Photosynthesis
    • Light Dependent Reaction
      • Thylakoid membranes
      • Makes ATP by photophosphorylation
      • Makes reduced NADP
      • Produces oxygen by the photolysis (light energy) of water
      • Non-Cyclic Photophosphorylation: ATP, reduced NADP and oxygen. Uses both phtosystems
      • Protons move down a concentration gradient using the energy lost by electrons when they go through the ETC, make ATP via ATP synthase enzyme
        • CHEMIOSMOSIS
      • Cyclic Photophosphorylation: ATP, uses only PS1, electrons don;t reduce NADP
    • Light Independent Reaction
      • Calvin Cycle
        • RuBP
          • rubisco
          • +CO2
            • rubisco
          • GP
            • 2NADP +2ATP
            • TP
              • glucose
              • amino acids
              • organic substances
        • GP
          • 2NADP +2ATP
          • TP
            • glucose
            • amino acids
            • organic substances
    • Limiting Factors
      • Light Intensity
        • Low light intensities will produce less ATP and reduced NADP.
          • Production of TP from GP is slow, build up of GP.
      • saturation point
      • Temperature
        • Light independent reactions slow in low temps as enzymes are effected, not a optimum, low levels of everything
        • high temps, enzymes denature, low levels of everything again
        • Calvin Cycle
          • RuBP
            • +CO2
        • CO2 concentration
    • ATP (substrate level phosphorylation

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