Xylem: Transports water and minerals, Dead, Lignin supports walls to withstand pressure of water, Ends of cells have disappeared to form a hollow tube, Movement is in upward direction only, Phloem: Transports sugars, Movement is up and down the vessel, Alive, Has sieve plates, Has a companion cell,

N5 Biology 2.5 Xylem and Phloem

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