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Photosynthesis
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What is Photosynthesis?
A process that converts light (solar) energy into stored (chemical) energy in the form of food molecules like glucose or starch
Process used by AUTOTROPHS like plants and algae to make food.
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Where does photosynthesis take place?
• Inside the leaves• Inside the cell• Inside the chloroplast
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What does photosynthesis require?
The process requires: Sunlight – source of energy Chlorophyll, the green pigment that
captures light energy. Water (H2O) Carbon dioxide (CO2)
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6H2O + 6CO2 C6H12O6 + 6O2
WATER + CARBON GLUCOSE + OXYGEN
DIOXIDE
The photosynthesis equation
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Where does photosynthesis take place?
• Inside the chloroplast– Chlorophyll is found inside the chloroplast
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Stages of Photosynthesis
1. Energy is captured from sunlight.
2. Light energy is converted to chemical energy stored.
3. The stored energy transforms into carbohydrates using CO2
http://www.kapili.com/c/cell.html
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Summary of Photosynthesis
6CO2 + 6H2O + sunlight C6H12O6 + 6O2
What are the reactants (needed) for photosynthesis?
What are the products (made) of photosynthesis?
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Types of Organisms
• AutotrophsMake their own food
• HeterotrophsObtain energy from the food they consume or absorb
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ENERGY
• Energy is the ability to do work
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• http://www.galenaparkisd.com/curriculum/science/curriculum_science_grade_6.htm/Photosynthesis-VideoClip.asf
• http://www.brainpop.com/science/cellularlifeandgenetics/photosynthesis/