🌱 Science

How Does Photosynthesis Work?

See how plants use light, water and carbon dioxide to make food.

Photosynthesis is a biological process in which plants, algae and some microorganisms use light energy to help convert carbon dioxide and water into energy-rich chemical compounds.

How it works

  1. Light provides energy for the process.
  2. Water and carbon dioxide are key inputs.
  3. Chemical reactions produce sugars and release oxygen in oxygenic photosynthesis.
  4. The resulting compounds support growth and metabolism.
Key takeaway: Photosynthesis is one of the major ways energy from sunlight enters many ecosystems.

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