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Photosynthesis
 

Photosynthesis

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    Photosynthesis Photosynthesis Presentation Transcript

    • Photosynthesis
    • Photosynthesis
      • Light absorption takes place in the chloroplasts
        • Double membrane bound
        • Stacks of thyakaloids are called grana and suspended in a fluid called stroma (CD)
      • Three major pigments
        • Chlorophyll A
        • Chlorophyll B
        • Carotenoid
    • Electron Transport
      • Pigment clusters called photosystems (CD).
        • Photosystem I
        • Photosystem II
    • Steps
      • Light hits the thylakoid, electrons are excited and water is split
      • Electron enter the Electron Transport Chain
      • H+ ions are pumped into the thylakoid
    • Steps
      • 4. Light re-excites electrons at photosystem 1.
      • 5. ATP and NADPH are both made.
    •  
    • Chemiosmosis
      • ETC’s role
      • ATP Synthase (ppt)
    • Calvin Cycle
      • Carbon fixation
      • Dark reaction issues
      • Stomata
    • Alternative Pathways
      • Stomata issues resolved
      • C4
      • CAM