Adp h2o co2 light reactor calvin cycle atp nadph

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Unformatted text preview: ADP H2O CO2 LIGHT REACTOR CALVIN CYCLE ATP NADPH STROMA (Low H+ concentration) O2 [CH2O] (sugar) Photosystem II Cytochrome complex Light 2 H+ Photosystem I NADP+ reductase Fd NADPH 3 NADP+ + 2H+ + H+ Pq Pc 2 H2O 1 /2 THYLAKOID SPACE (High H+ concentration) O2 +2 H+ 2 H+ 1 To Calvin cycle STROMA (Low H+ concentration) Thylakoid membrane ATP synthase ADP + P H+ ATP Chemiosmosis in chloroplasts produces ATP from energy of proton-motive force, as in mitochondria electron transport not necessary in the dark Photosystems I and II are not uniformly distributed in the thylakoid membrane stroma stroma Stroma H+ H+ H+ H+ H+ H+ H+ Thylakoid lumen H+ H+ + pH 7 pH 4 H+ H+ + + H+ H H H+ H+ H+ H+ H+ H H+ H+ Thylakoid lumen H+ H+ H+ H+ H+ H+ H+ H+ H+ H+ pH 4 pH 8 ATP H+ H+ H+ H+ H+ H+ H+ H+ H+ H+ Stroma Exp: Andre Jaegendorf 4 Comparison of chemiosmosis in mitochondria and chloroplasts Key Higher [H+] Lower [H+] Mitochondrion Chloroplast Clicker Question Energy for the final manufacture of ATP in photosynthesis is similar to that in cellular respiration. Where does it come from ? MITOCHONDRION STRUCTURE H+ Intermembra...
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