Bacteriology BIMM 120
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This 3 page Class Notes was uploaded by August Ferry on Thursday October 22, 2015. The Class Notes belongs to BIMM 120 at University of California - San Diego taught by Staff in Fall. Since its upload, it has received 18 views. For similar materials see /class/226782/bimm-120-university-of-california-san-diego in Biology Molecular Cell & Dev at University of California - San Diego.
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Date Created: 10/22/15
Photosynthesis Cyclic and Noncyclic Photophosphorylation Present in Cyanobacteria and organisms that have chloroplasts Cyclic Photophosphory ation Simplest Situation Cell needs to synthesize ATP but not reducing power NADPH Only PS I needed for this process m o Radiant energy absorbed 0 Reaction center chlorophyll excited emitting high energy electrons o Electrons passed to electron carrier which transports them to a proton pump 0 The electrons are used to pump protons across membrane thus generating EMF and ATP 0 Electrons returned to PSI Noncycl ic Photophosphory ation More Complex Situation Cells need ATP and reducing power 0 Electrons emitted by Photosysteml are not passed to the proton pump but instead are donated to NADP to produce NADPH 0 Cell get reducing power but must replenish the electrons emmited by the reaction center chlorophyll from another source 0 In this case PSII provides the electrons by photolysis of water IE Rem am WWW mm mm Wm quotW mmmmu anwm WWW Manamau mms Yhel nnuumPhulu ydemsalcyamlutle andChlumplasls Raman39e39mm awnmm mmmmmm Nvmman wad a wmHuangqmzmvahu nuagyuwclrrNMquotSHBHVWrcanas mnrwsau munt m cmsWannsm sm m bymnspmmamwmmmhalmm uivsb rwnarhmmuec mu wmmm hmmtvr rmmmsdnwbrnn397 dammed NJWWVW m M m m m am WWW WWW u we mmcv WWW ssmwn rmmxjn mm m mm pmmw sums WWW m w m HIan mm mmng 0 Tandem Photosystems of Cyanobactena and chloroplasts N n F 39 M mm Hum mm M wearcerame R 39 u on In