Transport in plants

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  • TRANSPORT IN PLANTS
    • Root Hair Cells
      • Water osmosis out of soil with a high water potential into root hair cell
        • Diffuses from soil into cells down a water potential gradient
          • Contain a high concentration of sugars and mineral ions making water potential low
      • Contain a high concentration of sugars and mineral ions making water potential low
    • XYLEM
      • Water potential in the xylem decreases due to actively transporting mineral ions into it.
        • Water moves from the endodermis into the xylem by osmosis down a water potential gradient
          • Root pressure
    • Evaporation from leaves
      • Evaporates from mesophyll cells into air spaces in the leaf
        • Water will diffuse out of stomata, moving from an area of high concentration to an area of low concentration out of the leaf

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