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Photosynthesis

Photosynthesis. Energy to Glucose. Photosynthesis in Nature. Transforms solar energy into chemical energy. CO 2 and H 2 O into Glucose CO 2 is carbon source and light is energy source. Producers. Plants, Algae and other autotrophs are the producers in the ecosystem.

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Photosynthesis

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  1. Photosynthesis Energy to Glucose

  2. Photosynthesis in Nature • Transforms solar energy into chemical energy. • CO2 and H2O into Glucose • CO2 is carbon source and light is energy source.

  3. Producers • Plants, Algae and other autotrophs are the producers in the ecosystem. • Autotrophs synthesize organic molecules from inorganic raw materials. • Heterotrophs acquire organic molecules from compounds made by other organisms. (consumers, decomposers)

  4. Site of Photosynthesis • Plant cells

  5. Dicot Leaf Cross Section

  6. Plant Cell

  7. Guard Cells

  8. Elodea

  9. Mesophyll Cells

  10. Chloroplasts

  11. Chloroplasts Ribosomes DNA

  12. Pathways of Photosynthesis • Light Dependent Reactions (Light Reactions) • Products • Oxygen • NADPH2 • ATP • Light Independent Reactions (Dark Reactions or Calvin Cycle) • Glucose

  13. Light Reactions

  14. Light Independent Reactions (Calvin Cycle)

  15. Light Independent (Calvin Cycle)

  16. Summary of Photosynthetic Pathways • Light Reactions • NADPH2 • ATP • Byproduct is Oxygen • Dark Reaction • Glucose

  17. Relationship of Structure and Function • Folded Thylakoid membranes • Separate Areas • Lumen for Proton Accumulation • Fluid Stroma

  18. Action and Absorption Specra • Action Spectra is related to the Rate of Photosynthesis • Absorption is the absorption of specific wavelengths.

  19. Limiting Factors • Light Intensity • Temperature • Concentration of Carbon Dioxide

  20. Light Intensity • Why does it plateau?

  21. Temperature • What does this curve look like? • What could temperature be effecting?

  22. Carbon Dioxide • Why does it Plateau?

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