Transcript
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Autotrophs are the producers of the
biosphere
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Photosynthesis occurs in chloroplasts
in plant cells
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The Chloroplast
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Plants produce O2 gas by splitting
water
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Photosynthesis is a redox process, as is
cellular respiration
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Overview: The two stages of photosynthesis are
linked by ATP and NADPH
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Visible radiation drives the light
reactions
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Interaction of light with a chloroplast
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Photosystems capture solar power
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Two photosystems connected by an electron
transport chain generate ATP and NADPH
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Chemiosmosis powers ATP synthesis in
the light reactions
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ATP and NADPH power sugar synthesis
in the Calvin cycle
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Review: Photosynthesis uses light energy,
CO2, and H2O to make food molecules
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Adaptations that save water in hot, dry
climates evolved in C4 and CAM plants