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Chapter 10 Notes - Chapter 10 Photosynthesis...

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Chapter 10 Photosynthesis Photosynthesis-process that converts solar energy into chemical energy Autotroph “self-feeder” Produce their organic molecules from CO2 and other inorganic raw materials from environment “producers” photoautotrophs Photosynthesis also occurs in plants, algae, certain other protists, and some prokaryotes Heterotrophs “consumers” Obtain organic material by consuming other organisms Decomposers-obtain organic material by consuming remains of dead organisms Chloroplasts: The Sites of Photosynthesis in Plants Chloroplasts located in Green stems, leaves, etc… But leaves Are the major sites of photosynthesis Chloroplast Structure Terms Chlorophyll-color Mesophyll-where most chloroplasts are found Stomata-pores Thylakoids Granum Thylakoid Space Thylakoid membrane-where chlorophyll resides Stroma Double Membrane
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Chloroplast Structure Photosynthesis The Splitting of Water Chloroplasts split water into Hydrogen and oxygen, incorporating the electrons of hydrogen into sugar molecules Plants 3 Major photosynthesis categories C3 C4 CAM Two Stages of Photosynthesis Light Reactions-form ATP, NADPH, O2 Photosystem I Photosystem II Dark Reactions-form sugar Calvin Cycle An overview of photosynthesis Light reactions overview Occur in the grana/thylakoids Events split water release oxygen makes ATP, NADPH Calvin cycle overview Occurs in the stroma Events Converts sugar from carbon dioxide uses ATP for energy and NADPH for reducing power
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Light Terms wavelength electromagnetic spectrum visible light photon spectrophotometer absorption spectrum pigments chlorophyll a chlorophyll b carotenoids The Nature of Sunlight Light form of electromagnetic energy, which travels in waves Wavelength distance between the crests of waves Determines the type of electromagnetic energy
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