Unformatted text preview: sensory rhodopsins • We have sensory rhodopsins in our eyes • There are different sorts of rhodopsins that exist in bacteria that live almost anywhere in the ocean • With retinal in bacteria you can produce proton pumping • Rhodopsin is a new kind of light-driven energy generation • There’s even evidence that it’s being laterally transferred • Rhodopsin-using hybrids could be likened to hybrid automobiles. o Rhodopsin allows them to charge a battery ° Where do organisms get their energy? o Chemolithotrophs: Oxidize inorganic compounds Chemoorganotrophs: Oxidize organic compounds ° Neither of these types needs to use oxygen to dump their electrons onto. Oxygen isn’t always available in many environments ° NADH from glycolysis can be used in energy pathways – donate electrons, forming chemi-osmotic gradient...
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- Fall '09
- Bacteria, Adenosine triphosphate, Excited Electrons, light-driven energy generation, light-driven ion pumps, sensory rhodopsins