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    Does anyone know why absorption occurs behind the tip of a root and not on the actual tip? Any help would be greatly appreciated


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    This is because the root hairs erupt from these cells of the roots.
    As you well know (or I believe you should but I don't know the stage your at), the very tips of the roots are meant for mitosis and as a result, are aimed at growing hence why when you get a plant's roots you are told to cut them from the tip to monitor mitosis occurring. =)

    And as you know, the root hairs are used for absorption of nutrients dissolved in water as well as water itself.
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    Thank you!


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