Autotrophs are the producers of the biospherePhotosynthesis occurs in chloroplasts in plant cellsThe ChloroplastPlants produce O2 gas by splitting waterPhotosynthesis is a redox process, as is cellular respirationOverview: The two stages of photosynthesis are linked by ATP and NADPHVisible radiation drives the light reactionsInteraction of light with a chloroplastPhotosystems capture solar powerTwo photosystems connected by an electron transport chain generate ATP and NADPHChemiosmosis powers ATP synthesis in the light reactionsATP and NADPH power sugar synthesis in the Calvin cycleReview: Photosynthesis uses light energy, CO2, and H2O to make food moleculesAdaptations that save water in hot, dry climates evolved in C4 and CAM
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