Photosynthesis

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PhotosynthesisRespiration
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All Cells Need Energy

• Chemical energy is stored in cells.
• Cells need a way to release that energy.
• A major source of energy for cells is glucose
  (sugar).

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Photosynthesis

• The process that plant cells use to convert the
  suns energy into food.
• Chloroplasts contain chlorophyll which traps the
  energy in sunlight.

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Water Carbon dioxide Light
EnergyGlucose Oxygen
H2O
CO2
C6H12O6
O2
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All Cells Release Energy

• This can occur in 2 ways
• Cellular Respiration
• Fermentation

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Cellular Respiration

• Cells use oxygen to release energy stored in
  sugars (glucose)
• Takes place in the mitochondria

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Glucose Oxygen Chemical Energy Water
Carbon Dioxide
C6H12O6
O2
H2O
CO2
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Fermentation

• Process by which cells release energy without
  oxygen