Final answer:
Water moves up a plant in the transpiration stream due to the transpirational pull. Water and mineral ions enter the plant at the roots through osmosis.
Explanation:
Water moves up a plant in the transpiration stream due to the transpirational pull. As water is lost through transpiration from the leaves, it creates a negative pressure that pulls water up from the roots and stem into the leaves. Water and mineral ions enter the plant at the roots through root hairs by osmosis, and they travel through the xylem to reach the rest of the plant.
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