1Energy Storage/Energy consumptionLecture 13: Chp. 6, etc.Summary of Photoreactions to Photophosporylation, note gain of 2 NADPH Becker et al. The World of the CellAlternatively ATP can be synthesized by cyclic photophosphorylation (PSI), at the expense of NADPHATP from Photophosphorylation•For every 4 e-moving from PSII to PSI, 8 H+(photolysis & from PSII) go to thylakoid lumen. Can generate 2-3 ATP(since 1ATP is synthesized for every 3)•Plus for every 4 e-, 2 NADPH can be producedNADPH – higher energy than NADH
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2Photosynthesis the most important reaction on earth: Chemical expression6 CO2+ 12 H2O C6H12O6+ 6 O2+ 6 H2OSummary RXs in a Chloroplast:Calvin Cycle in StromaOrganization of a Leaf (C3)Mesophyll cells-photosyntheticEpidermis with cutinwater loss protection