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Chapter 8 Photosynthesis, CAM Plants, C4 Plants,…

- - - - PSII
        
        1st step oxidize water (in manganese cluster) to O2+H+/ release E in e- , travel to PSI (ETC).
        
        Light-harvesting complex/ antenna complex
        
        Absorb photons E transferred via energy transfer.
        
        Reaction center
        
        P680 ----- P680+ (unstable = replace e- from water oxidation)
        
        on nonexcited pigments e- start with the lowest E / then light excites them.
      - PSI
        
        make NADPH (add H+ from stroma to NADP+)
        
        Noncyclic electron flow
        
        when ATP or NADP+ are low
        
        In cyclic electron flow
        
        it boost e- to higher E level
    - - .
- - - - 1) Carbon fixation: CO2 -----> RUBP (using rubisco) ------> then split tp 3PG
      - 2) Reduction & carbohydrate production: ATP: convert 3PG to 1,3-BPG NADPH e- reduce it to G3P.
        
        2 G3P used for glucose and other sugars.
        
        6 ATP convert 10 G3P to 6RUBP.
      - 3) Regeneration of RUBP