Monday, February 23, 2009

Plant leaves are engaged in Photosynthesis

Photosynthesis in a metabollic pathway of which plants take Carbon dioxide and convert it into organic compounds, especially glucose, using the energy from sunlight. Photosynthesis occurs in plants, algae, and many species of bacteria, but not in Archaea. Photosynthetic organisms are called photoautotrophs, but not all organisms that use light as a source of energy carry out photosynthesis, since photoheterotrophs use organic compounds, rather than carbon dioxide, as a source of carbon. In plants, algae and cyanobacteria photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product.

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