Explain the mechanism of water movement from the roots up the tree to the leaves​

1-Water is passively transported into the roots and then into the xylem. 2-The forces of cohesion and adhesion cause the water molecules to form a column in the xylem. 3- Water moves from the xylem into the mesophyll cells, evaporates from their surfaces and leaves the plant by diffusion through the stomata.

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answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.