How Plants Make Food - Knowledgebase Question

Conroe, TX
Question by ekamman
April 18, 1999
Our class is doing research on what plants need to grow. Would you please tell us how plants produce their food?






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Answer from NGA
April 18, 1999

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Plants use the energy from the sun to "fix" the carbon in carbon dioxide (in the air) into simple carbohydrates (sugars). This process is called photosynthesis, and takes place only in green plants (with a few minor exceptions in microorganisms) and only in the presence of light. The reaction takes place in the plant's chloroplasts, which contain the green pigment chlorophyll.

Plants' basic needs include light, water, air, and minerals.

There are lots of books and web sites devoted to this subject, so I hope you'll explore it more in depth. An interesting one is the ASU Photosynthesis Center, web site: http://photoscience.la.asu.edu... Scroll down to the "Educational Resources" for some interesting links.

Also, NGA is now offering online botany courses for people who want to learn more about botany! We cover photosynthesis in-depth there. (Visit our web site at www.garden.org -- go to "Online Courses".)

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