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Once you have read the scientific text "Oceanic Nutrients -phytoplankton and nutrients" have a go answering the following questions.
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Photosynthesis.
Author: Lucinda Spokes.
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Click the GREEN button, if you think that the answer is correct and the RED button, if you think that the statement is wrong.
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1. Phytoplankton are single celled plants which live in the surface waters of the oceans.
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2. Phytoplankton are single celled plants which live on the ocean floor.
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3. Phytoplankton use sunlight, oxygen (O2) and water for photosynthesis.
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4. Phytoplankton use moonlight, carbon dioxide (CO2) and water for photosynthesis.
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5. Phytoplankton use sunlight, carbon dioxide (CO2) and water for photosynthesis.
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6. Phytoplankton make organic compounds during photosynthesis.
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7. Photosynthesis produces carbon dioxide as a waste product.
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8. Photosynthesis takes place at all depths in the ocean.
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9. Photosynthesis takes place only in surface waters.
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10. Phytoplankton also need a wide variety of nutrients to grow. The two critical nutrients are nitrogen and phosphorus.
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About this page:
author: Dr. Yvonne Schleicher - University of Nürnberg, Germany
scientific reviewing: Dr. Lucinda Spokes - School of Environmental Sciences, University of East Anglia, Norwich, U.K.
educational reviewing: Prof. Dr. Helmut Schrettenbrunner and Julia Heres - University of Nürnberg, Germany
last update: 2003-11-07
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