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Activity Discussion Science & Technology science Reply To: science

  • Chantel

    June 20, 2024 at 1:44 pm
    Not Helpful

    Plants use a process called photosynthesis to convert sunlight into chemical energy that they can use to fuel their growth and development.

    The key steps in photosynthesis are:

    1. Light Absorption: The chloroplasts in plant cells contain chlorophyll, a green pigment that absorbs sunlight, particularly the red and blue wavelengths of the visible light spectrum.

    2. Light Reactions: The absorbed light energy is used to split water molecules, releasing electrons. This process generates ATP and NADPH, which are high-energy molecules that the plant can use.

    3. Carbon Dioxide Fixation: The plant takes in carbon dioxide from the air through its leaves. This carbon dioxide is then combined with the ATP and NADPH from the light reactions to produce glucose and other organic compounds through a series of chemical reactions.

    4. Glucose Production: The glucose produced is the primary energy source for the plant. It can be used immediately for growth and development, or stored for later use.

    The overall reaction can be summarized as:

    6CO2 + 6H2O + Sunlight → C6H12O6 + 6O2

    This shows that plants use carbon dioxide, water, and the energy from sunlight to produce glucose and oxygen as byproducts. This process is essential for sustaining life on Earth, as plants produce the oxygen we breathe and the food we eat.

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