Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS

Illuminating Photosynthesis

  • By Rick Groleau
  • Posted 11.01.01
  • NOVA

Photosynthesis in plants and a few bacteria is responsible for feeding nearly all life on Earth. It allows energy from the sun to be converted into a storable form, usually glucose, which plants use to grow and thrive. Photosynthesis also generates the oxygen that animals need to survive. But here we animals repay the favor. We exhale the carbon dioxide that plants need for photosynthesis. Here, take a closer look at the oxygen/carbon dioxide cycle and the process of photosynthesis.

Launch Interactive Printable Version

Explore how photosynthesis works by helping the process along in this game.

This feature originally appeared on the site for the NOVA program Methuselah Tree.

Related Links

  • Population Ecology

    When oak trees shed huge numbers of acorns every few years, it has ramifications throughout the ecosystem.

  • Algae Fuel

    In the search for alternatives to gasoline, are algae the answer?

  • From Pond Scum to Power

    In this animated primer, learn why algae and other plants make oil, and how algae oil gets converted to biodiesel.

  • Flowers Modern & Ancient

    How does a 125 million-year-old angiosperm measure up to a lily of today?

Close

You need the Flash Player plug-in to view this content.