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SCIENCE

The Claim

Photosynthesis by plants, algae, and some bacteria removes carbon dioxide from the atmosphere and converts it into sugars using sunlight.

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The Short Version

The core description matches standard biology. In plants, algae, and photosynthetic bacteria such as cyanobacteria, sunlight drives carbon fixation, turning CO2 into carbohydrates including sugars. The main caveat is that bacterial photosynthesis is diverse, so the exact pathway is not identical across all bacteria.

Caveats

  • Not all photosynthetic bacteria behave like plants and algae; the statement is accurate because it refers to only some bacteria.
  • Bacterial photosynthesis can use different electron donors and carbon-fixation pathways, so the claim is a simplified overview.
  • The process does not always take CO2 directly from the atmosphere in every environment; aquatic organisms often use dissolved inorganic carbon.

The Receipts

  1. Photosynthesis

    PMC (NIH)

  2. DOE Explains...the Carbon Cycle

    U.S. Department of Energy

  3. Photosynthesis and Carbon Metabolism in Higher Plants and Algae

    PubMed Central

  4. The Photosynthetic Process

    University of Illinois

  5. The Calvin cycle (article) | Photosynthesis

    Khan Academy

  6. The Path of Carbon in Photosynthesis

    eScholarship (University of California)

  7. How do Plants Make Oxygen? Ask Cyanobacteria

    Caltech

  8. Why Study Photosynthesis

    Arizona State University

  9. Video: What is Photosynthesis?

    JoVE

  10. Photosynthesis: Crash Course Biology #8

    CrashCourse (YouTube)

Filed Under

Photosynthesis

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