what is the purpose of photosynthesis

20 minutes ago 1
Nature

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy from the sun into chemical energy stored in sugars. Its primary purpose is to produce glucose (a usable form of chemical energy) and oxygen as a byproduct, supporting life on Earth. Key points:

  • Energy capture and storage: Light energy is captured by chlorophyll and used to synthesize glucose from carbon dioxide and water. The stored chemical energy in glucose powers plant growth and metabolism, and ultimately fuels nearly all life on Earth through the food chain.
  • Oxygen production: A byproduct of photosynthesis is oxygen, which is released into the atmosphere and essential for aerobic (oxygen-using) organisms, including humans.
  • Basis of ecosystems: By converting light energy into chemical energy, photosynthesis forms the foundation of most ecosystems, driving the carbon cycle and providing the primary source of organic matter for nearly all organisms.

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