Roots absorb water and minerals from the ground., Minerals and water travel iniside vessels to the stem and the leaves. This liquid is called RAW SAP., Carbon dioxide from the air passes through small pores in the leaves., A green chemical in the leaves absorbs sunlight. The leaves use this energy to change carbon dioxide and water into a sugar called ELABORATED SAP (the plant food)., At the same time, the leaves release oxygen into the air., Different vessels transport elaborated sap to all the parts of the plant..

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