Photosynthesis is how green plants make their own food using light energy. This unit covers the reactants, products and site of the reaction, and the factors that control how fast it happens.
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The photosynthesis reaction
Plants use light energy to turn carbon dioxide and water into glucose and oxygen.
The word equation is: carbon dioxide + water gives glucose + oxygen.
Light energy is absorbed by the green pigment chlorophyll.
The reaction takes place mainly in the chloroplasts of leaf cells.
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1. Which gas is released as a product of photosynthesis?
2. What are the raw materials (reactants) of photosynthesis?
3. Which pigment absorbs the light energy used in photosynthesis?
4. Which of these is a limiting factor of photosynthesis?
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