Photosynthesis

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Photosynthesis

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  1. Photosynthesis

    Slide 1 - Photosynthesis

  2. Review

    Slide 2 - Review

    • All living things need energy
    • METABOLISM = Food  Energy
    • Cells can ONLY use ATP for energy
    • Cellular respiration is the process that transfers energy from glucose (a sugar, or carbohydrate) into ATP
  3. Carbohydrates: Where Do They Come From?

    Slide 3 - Carbohydrates: Where Do They Come From?

    • Let’s try to trace all carbohydrates back their original sources:
    • Starches:
    • Bread
    • Pasta
    • Rice
    • Sugars:
    • Fruit
    • Sweets = sucrose (sugar)
    • Fiber
  4. PHOTOSYNTHESIS

    Slide 4 - PHOTOSYNTHESIS

    • Photosynthesis literally means, “to make with light”. (make what?)
    • Photosynthesis has often been referred to as the most important process on Earth. (but why?)
    • We will answer both of those questions. But first…
  5. BASIC PLANT ANATOMY

    Slide 5 - BASIC PLANT ANATOMY

  6. LEAF ANATOMY:

    Slide 6 - LEAF ANATOMY:

  7. Photosynthesis: An Overview

    Slide 7 - Photosynthesis: An Overview

    • Photosynthesis is the process plants use to make a sugar called glucose. Plants use this sugar for energy, just as we do. In order to make this sugar, plants need two chemicals from their environment: water, which enters from the roots, and carbon dioxide, which enters from the leaf stomata. Plants also require light to perform photosynthesis. Plants are able to trap and use this form of energy because they have chlorophyll a special green-colored pigment.
  8. Chemical Elements and Photosynthesis

    Slide 9 - Chemical Elements and Photosynthesis

    • WATER:
    • 6 H2O
    • CARBON DIOXIDE:
    • 6 CO2
    • GLUCOSE:
    • C6H12O6
  9. PHOTOSYNTHESIS “WASTE”

    Slide 10 - PHOTOSYNTHESIS “WASTE”

    • OXYGEN GAS
    • O2
  10. Overall Chemical Equation for Photosynthesis

    Slide 12 - Overall Chemical Equation for Photosynthesis