What is the equation for photosynthesis?

6CO2 (carbon dioxide) + 6H2O (water) + light energy ➔ C6H12O6 (glucose) + 6O2 (oxygen)


The light energy required for photosynthesis is usually supplied by the sun.

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What are the main stages of photosynthesis?

  1. Capturing of light energy by pigments such as chlorophyll
  2. The light-dependent reaction, where light energy is converted into chemical energy
  3. The light-independent reaction, where sugars and other organic molecules are produced

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What is the role of ATP in organisms?

ATP (adenosine triphosphate) is a molecule that stores and releases energy for various cellular processes.

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What is the relationship between respiration and photosynthesis?

The products of photosynthesis, glucose and oxygen, can be used as reactants in respiration to synthesise ATP.


The products of respiration, carbon dioxide and water, can then be used as reactants in photosynthesis.

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