Plants do not have a circulatory system like that of some animals. If a water molecule did "circulate" (that is, go from one point in a plant to another and back in the same day), it would require the activity of

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The xylem is responsible for transporting water and minerals from the roots to the rest of the plant, while the phloem distributes sugars and other nutrients produced through photosynthesis from the leaves to other parts of the plant. For a water molecule to circulate within a plant, it would involve movement up through the xylem and distribution through the phloem, thus involving both systems.

Plants Do Not Have a Circulatory System Like That of Some