Microbes Transfer Energy

Microbes Transfer Energy

1. Moving Electrons

   • Electron Transport Systems (ETS)
     • Proton Motive Force
       • Generates ATP
       • Drive protons across the membrane

2. Energy Yielding Reactions

   • Reduced donors & Oxidized acceptors
   • Aerobic Respiration
     • Transfer electrons using ETS
       • converts energy into an ion potential across the membrane (PMF)

3. 3 types of prokaryotic energy yielding processes using ETS

   • Organotrophy
     • Organic electron donors
     • Inorganic OR Organic electron acceptors
   • Lithotrophy
     • Inorganic electron donors
   • Phototrophy
     • light capture by chloropyll
     • splitting H2S OR H20 OR organic molecules

4. Energy Storage

   • Reduction Potential
     • Tendency to accept electrons
   • Favored Reaction
     • negative delta G, positive E
   • Standard Reduction Potential
     • All reactants and products = 1 M at pH 7