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AS: Xylem and Phloem

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    God almighty, it seems like I have been doing xylem and phloem for months and I still know little to none. Can anyone give me good solid notes with key info? Thanks.
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    This is biology. Plant biology. There is nothing to "get". You're obviously not memorizing hard enough.
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    Thats what I mean, I have no notes to memorize from? Like I dont know half of the stuff on xylem or phloem, Im aware that it is factual and therefore has to be learn rather than worked out.
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    Get a text book or something?
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    Xylem contains two pathways
    Symplast -goes through the living parts of the cell-the cytoplasm.The cytoplasm of neighbouring cells connect through plasmodesmata.

    Apoplast goes through the non-living parts of the cell-the cell wall.The walls are absorbent and water can simply diffuse through them.

    Apolplast pathway gets to the endodermis cells ,its path is blocked by a waxy strip in the cell wall called the Casparian strip.As a result water goes through symplast pathway. Useful because it has to go through a cell membrane .Once past this barrier ,the water moves into the xylem vessel.
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    Xylem is in the vascular bundle, it helps to support the plant and it transports water and mineral ions in the plant.
    Phloem transports sucrose through the plant.
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    (Original post by Lama88)
    Xylem contains two pathways
    Symplast -goes through the living parts of the cell-the cytoplasm.The cytoplasm of neighbouring cells connect through plasmodesmata.

    Apoplast goes through the non-living parts of the cell-the cell wall.The walls are absorbent and water can simply diffuse through them.

    Apolplast pathway gets to the endodermis cells ,its path is blocked by a waxy strip in the cell wall called the Casparian strip.As a result water goes through symplast pathway. Useful because it has to go through a cell membrane .Once past this barrier ,the water moves into the xylem vessel.
    Erm... those are the pathways to the xylem, from the root hair cells. Not the pathways along/through the xylem.



    OP: I'd advise getting hold of a textbook, that should contain anything and everything that you're expected to know about them, and you can just learn that.
    Notes are fallible, textbooks ought not be.
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    yeah they are .
    I know the ones also in the xylem vessels via cohesion tension mechanism and root pressure .

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Updated: April 16, 2012
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