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GAS EXCHANGE IN DICOT PLANTS In order to carry on photosynthesis, plant need a supply of carbon dioxide and also a means of disposing
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- Wed Feb 22 2006

... DERRICK OKRAH GAS EXCHANGE IN DICOT PLANTS In order to carry on photosynthesis, plant need a supply of carbon dioxide and also a means of disposing oxygen. Again in other to carry on cellular respiration, plant cells need oxygen and a means of disposition carbon dioxide. Unlike animals, plants have no specialized organs for gas exchange. There are several reasons they can get along without them. REASONS Each part of the plant takes care of its own gas exchange needs. Although plants have an elaborate liquid transport system, it does not participate in gas transport. Roots, stems, and leaves respire at rates much lower than are characteristic of animals. Only during photosynthesis are large volumes of gases exchanged and each leaf is well adapted to take care of its own needs. The distance that gases must diffuse in even a large plant is not great. Each living cell in the plant is located close to














