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  • Photosynthesis Reaction: Understanding the Chemical Equation
    The overall photosynthesis reaction is:

    6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂

    This means:

    * 6 molecules of carbon dioxide (CO₂) + 6 molecules of water (H₂O) + light energy are used to produce

    * 1 molecule of glucose (C₆H₁₂O₆) + 6 molecules of oxygen (O₂)

    Here's a breakdown:

    * Carbon dioxide (CO₂): The source of carbon for building glucose.

    * Water (H₂O): The source of hydrogen and electrons for glucose, and the oxygen atoms released as a byproduct.

    * Light energy: Provides the energy required for the reaction.

    * Glucose (C₆H₁₂O₆): A sugar molecule that is the primary energy source for plants and other organisms.

    * Oxygen (O₂): A byproduct of photosynthesis that is released into the atmosphere.

    This reaction is actually a simplified representation of a complex process that occurs in two stages:

    1. Light-dependent reactions: Capture light energy and convert it into chemical energy in the form of ATP and NADPH.

    2. Light-independent reactions (Calvin cycle): Use the ATP and NADPH produced in the light-dependent reactions to convert CO₂ into glucose.

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