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Chapter 1 Review, ), Both include LUCA, Connects w/ Aerobic Respiration,…

- - - - Arose in a prebiotic soup containing most of necessary molecules
      - Growth & energy supply available
      - Early floating living world
      - Membrane bubbles
  - - - Evidence of eukaryotic cells ~2.7bya
        Geologically stable biomarker made predominantly by eukaryotes (eg cholesterol)
    - - Cytoskeleton
        
        Function: Intercellular transport, extracellular transport, structural support.
- - - - Electrons dropped off by NADH & FADH2
        
        Electrons pass through ETC
        
        Protons are pumped across
        
        Oxygen is final electron acceptor
        
        Chemiosmotic electrochemical gradient runs ATP synthase
        
        Driving production of ATP
- - - - Carbon Dioxide was used by early organisms to make its own sugar.
      - For a reaction to proceed it must overcome activation energy.