Nonseed Plants, Gymnosperms and the General Structure

Nonseed Plants, Gymnosperms and the General Structure -...

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Non-seed Plants, Gymnosperms and the General Structure of Angiosperms By: Maggie Dong
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Summary on Today’s Lab Examine liverworts, moss and fern Examine leaf, pollen, cone and seed of  pine Structures of  Brassica, Ranunculus  and  Zea mays
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Alternation of Generation Universal feature of the life cycles of land  plants Includes both a multicellular diploid stage  and a multicellular haploid stage Mitosis – gametes Meiosis – spores
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Nonseed Plants Ancestor: advanced algae like Chara  and Coleochaete  Development of adaptation for land  life
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Waxy cuticle Stomata -- Vascular plants -- Microphylls and  megaphylls VS. Environment Indicator
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Gymnosperms Overcame limitations of non-seed plants Sperms are not motile – pollen is used Embryo enclosed within seed Reduced gametophyte generation No flowers No xylem vessels
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Angiosperm Flowers appear Xylem vessels appear Sperms not motile
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Structure: Monocots vs.  Eudicots Cotyledons Veins in leaves Flower
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Arrangements of primary vascular bundles  in roots and stem
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Nonseed Plants, Gymnosperms and the General Structure -...

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