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Ox Phos - Coggle Diagram

- - - - Can accept donor electrons-
        
        Variable oxidation states
  - - - one or 2 at a time, forming semi-quinone
- - - - Stacked on one another like coins forming grana
  - - - Fluorescence resonance energy transfer - FRET
        
        Only occurs when molecules are close together
        
        Photon absorbed by pigment molecules and transfers energy to neighbouring molecules without energy loss
    - - The 2 chlorophyll molecules which give up electrons to begin electron transfer
        
        3 states of chlorophyll
        
        Ground state
        
        Excited state - proton of light absorbed
        
        Oxidised state - transfer of electron to acceptor
- - - - Downhill flow
- - - - Coenzyme Q --> complex 3
        
        Complex 3 to Complex 4
        
        Complex 4: Transferred to oxygen reduced to water
        
        Electrons from oxidation of succinate enter complex 2
        
        Feeds electrons into complex 3 via CoQ
        
        Succinate-ubiquinone oxidoreductase
        
        Protein complex carrying electrons from succinate to ubiquinone
        Contains covalently liked FAD as well as several Fe-S centers
        
        Matrix side of inner membrane
        
        Inhibition of succinate oxidation by competitive inhibitor malonate
        
        cytochrome c oxidase
        
        Involves two a type cytochromes and 2 Cu centres
        
        Complex of 13 proteins that span inner membrane
        
        Accepts 4 electrons to reduce O2 to H2O
        
        Inhibition of electron transfer by cyanide, CO and azide
        
        Each subunit has 11 different proteins
        
        Q cycle
        
        Transfers electrons from reduced ubiquinone and passes through cytochrome b and Fe-S centres to cytochrome C.
        
        Cytochrom C is water solube
        
        Loosely associated with outer side of inner membrane
        
        Inhibition of electron transfer by antimycin A
      - Multi protein compelx
        
        Oxidises NADH
        
        Forms L-Shaped complex
        
        Contains electron carriers, flavin mononucleotide and iron sulphur centres
        
        Inhibited by rotenone.