In the process of photosynthesis, the phosphorylation of ADP to form ATP using the energy of sunlight is called photophosphorylation. Only two sources of energy are available to living organisms: sunlight and reduction-oxidation (redox) reactions. All organisms produce ATP, which is the universal energy currency of life. In photophosphorylation, l...
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(from the article `photosynthesis`) ...is captured in the bond that links the added phosphate group to ADP. Because light energy powers this reaction in the chloroplasts, the production ...
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<plant biology> The synthesis of ATP that takes place during photosynthesis. In noncyclic photophosphorylation the photolysis of water produces electrons that generate a proton motive force which is used to produce ATP, the electrons finally being used to reduce NADP to NADPH. ... When the cellular ratio of reduced to nonreduced NADP is high,...
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The formation of high energy compounds by chemical reactions in which light is involved e.g. the synthesis of high-energy phosphate bonds as ATP, using light energy.
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The synthesis of ATP that takes place during photosynthesis. In non-cyclic photophosphorylation the photolysis of water produces electrons that generate a proton motive force which is used to produce ATP, the electrons finally being used to reduce NADP+ to NADPH. When the cellular ratio of reduced to non-reduced NADP is high, cyclic photophosphorylation occurs and the electrons pass down an electron transport system and generate additional ATP, but no NADPH.
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Type: Term Pronunciation: fō′tō-fos′fōr-i-lā′shŭn Definitions: 1. Formation of ATP as a result of absorption of light.
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photophosphorylation The process in photosynthesis that converts light energy to stored energy in plants and bacteria.
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