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Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
Photosynthesis
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Photosynthesis

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  • 1. The Process of Photosynthesis and Respiration<br />
  • 2. Life Before Photosynthesis<br />Heterotrophs existed before autotrophs<br />Introduction of autotrophs<br />O2 and O3 released in atmosphere<br />O2 allowed for aerobic respiration and O3 blocked UV rays<br />
  • 3. What is Photosynthesis?<br />CO2 + H2O Sugar + O2<br />Process that turns sun energy into sugar.<br />Carbon dioxide and water reacting with light:<br /> forms sugar molecules<br /> gives off oxygen<br />Occurs in chloroplasts<br />Light<br />
  • 4. Where Does It Occur? <br />Mostly inside cells of the leaves.<br />Within organelles called chloroplast.<br />Chloroplast contain:<br />Chlorophyll &amp; carotenoid pigments<br />Thykaloid membranes<br />Stroma<br />Outer &amp; inner membranes<br />
  • 5. Lumen<br />http://www.s-cool.co.uk/a-level/biology/cells-and-organelles/revise-it/organelles<br />
  • 6. What are Chlorophyll and Carotenoids?<br />Pigments found in chloroplast that absorb light.<br />Chlorophyll:<br />Reflects green light<br />Green color of plants<br />Carotenoids:<br />Reflects red, orange, yellow light<br />Fall colors<br />
  • 7. Inner and Outer Membrane<br />Outer membrane<br />Freely permeable to molecules. <br />Inner Membrane<br />Transporters regulate what goes in &amp; out.<br />
  • 8. Thylakoid Membranes<br />Membranes inside of chloroplast<br />Lumen: space inside thylakoid membranes<br />Granum: stacks of thylakoid membranes.<br />
  • 9. Stroma<br />Space around thylakoid membranes<br />Connecting thylakoids are called stromatylakoids<br />
  • 10. Lumen<br />
  • 11. Photosynthesis Contains Two Parts:<br />Light Reactions<br />Light dependent reactions. <br />Calvin Cycle<br />Light independent reactions. <br />
  • 12. Light Reactions<br />“Photo” part of photosynthesis<br />Converts light to useable energy source<br />Light energy and water to make energy <br />ATP and NADPH<br />Releases O2<br />Thylakoid membranes<br />
  • 13. Calvin Cycle<br />“Synthesis” part of photosynthesis<br />“fixes carbon”<br />Uses CO2 to synthesize simple 3-carbon sugars<br />Uses ATP and NADPH from light reactions<br />Stroma<br />
  • 14. http://1.bp.blogspot.com/_hhUdKwzDmA4/TG_3G_VcaNI/AAAAAAAAAow/iA2dXn-4-10/s1600/chloroplast+detail.jpg<br />
  • 15. Photosynthesis: Review!<br />Photosynthesis in equation and words.<br />Understand the parts of chloroplasts<br />Chlorophyll &amp; carotenoids<br />Thylakoid<br />Stroma<br />Inner and outer membrane<br />Light Reactions and Calvin Cycle<br />
  • 16. Works Cited<br />Raven, Peter. Biology of Plants. New York: W.H. Freeman and Co, 2005.<br />

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