MICROBIO 101 Study Guide - Midterm Guide: Chlorophyll, Photophosphorylation, Electron Excitation

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Terms to know: potential energy, energy based off location, chemotroph, uses chemicals to make energy, chemolithotrophs: use of inorganic electron donors as energy source for respiration. H2 oxidation (h2s is the electron donor) Fe2+ oxidation (iron is their electron donor) H2 oxidation (use gas as electron donor) Redox pathway which generates atp, and this atp can be used for biosynthesis. Also use co2 at times (sometimes called chemolithoautotrophs) We use things in our diet as our energy source. Take organic chemical, remove electrons, use that to make atp, and use. Atp to use more cells: a lot of diversity. Some are obligate fermenters: phototroph, convert light energy to chemical energy with photosystems, use ets and a proton motive force to make atp (also uses ets, photosystem has light harvesting complexes, reaction center, ets. Photosystems make light energy into chemical energy, and then into atp.