Photosynthesis2
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    Photosynthesis2 Photosynthesis2 Presentation Transcript

      • Based on what you discovered yesterday, why do leaves change colors in Autumn?
    • Photosynthesis
    • What is Photosynthesis?
      • Process by which green plants convert the energy from sunlight or light into chemical energy (glucose).
      • Obtains the energy from white light.
    • Autotrophs vs. Heterotrophs
      • Autotrophs---producers, makes their own food
      • Heterotrophs---consumers, must obtain or eat food
      • Autotrophs go through photosynthesis OR Chemosynthesis
      Autotrophs vs. Heterotrophs
    • Photosynthesis/Respiration Cycle
    • Ingredients of Photosynthesis
      • White Light (Sunlight)
      • Pigments
        • Chlorophyll
        • Accessory Pigments
      • ATP
      • CO2
      • H2O
    • ATP
      • ATP = adenosine triphosphate
      Big Energy Bond – Lots Chemical Energy Released P P P Three phosphate groups Adenine nitrogen group Ribose sugar
    • ADP-ATP Cycle ADP P ATP
    • White Light
      • White Light= ROY G BIV
      • Colors Appear the way they do because the light is REFLECTED
      • WHAT LIGHT IS IMPORTANT IN PHOTOSYNTHESIS?...
    • Types of Pigments
      • Chlorophyll---Green (reflected)
      • Accessory Pigments
        • Carotenoids:
          • Xanthophyll---Yellow
          • Carotene---Orange
    • Why so many colors?
    • Formula for Photosynthesis
      • H 2 O + CO 2 O 2 + C 6 H 12 O 6
    • Where Photosynthesis Takes Place
      • Leaf
      • Mesophyll Cells
      • Organelle responsible for Photosynthesis
        • Chloroplast
          • Contain Plant Pigments That Capture the Sun’s Energy
          • Thylakoid- Light Reactions
          • Stroma- Dark Reactions
    • Where the 2 Reactions of Photosynthesis take place                                   
    • Thylakoids
      • This is where the first phase of Photosynthesis takes place.
      • Which is also know as the light reaction .
      • Involves the trapping of light energy and the formation of materials.
      • Produces Oxygen by breaking down H 2 O into free Electrons, H + and O
      • H+ go to stroma, releasing energy for ATP Production.
    • Stroma
      • This is where the second phase, the Calvin Cycle, of Photosynthesis takes place.
      • Which is also known as the dark reaction .
      • Produces glucose from H + and CO 2 .
      • Uses the products from the light reactions to form glucose.
    • Summary!
      • Green Plants Are Excellent At Capturing the Sun’s Energy
      • They Make A Huge Amount of Glucose With A Little Of Energy From the Sun
      • Hey, They Actually Eat Their Own Glucose Through Aerobic Respiration