Photosynthesis in plantsPhotosynthesis in plantshνChl h llChlorophyll Light reactionNADPH/H+, ATPDark reactionRuBP, CO23-P-glycerateFig19-34, Cox, LehningerGlucoseStroma OMContains porins, highly permeableOMIM Intramembrane spaceThylakoid spaceThylakoid membraneGranum membraneStroma lamellae Plant chloroplastPlant chloroplast membrane organizationLi ht ti ibbdihi ti liLight reaction is membrane boundusing chemiosmotic coupling of electron transfer chain to ATP synthesis and NADPH reductione-transport fromH2O½O2O½ O2NADPH/H+QH2Proton gradientATP synthesisFig. Structure of plastoquinone (oxidized QB) Fig. Structure of Plastoquinol-1 (reduced QB) Fig. Structure of Chlorophyll a KEGG MAP00860 Porphyrin and chloro-phyll metabolism Fig. Structure of Vitamin K hydroquinone (reduced)Figure 19-4Voet, Fundamentals, 3rdAbsorption spectra of various photosynthetic pigments.Voet, Fundamentals, 3rdFig. 19.3Schematic representation of the thylakoid membrane showing the components of itsshowing the components of its electron-transport chain.Voet, Fundamentals, 3rdFig. 19.11Detailed diagram of the Z-scheme of photosynthesis.Voet, Fundamentals, 3rdFig. 19.12Electron extraction from water in PS IISee fig 19.16 in fundamentals, 3rded.Photosystem I cyclic mode produces ATP but not NADPHThe standard reduction potentials of the components of the purple photosynthetic bacteria’s photosynthetic electron-transport systemphotosynthetic bacteria s photosynthetic electron-transport system.Transitions observed at 540, 600, 790, 830 and 960 nm in RCs of Blastochloris (B.) viridis—a BChl bcontaining purple bacterium. These bacteria effectively make use of near infrared radiation (heat)Voet, Fundamentals, 3rdFig. 19.10Structural organization in thylakoid stacksVoet, Fundamentals, 3rdBox
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