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BS 110 Notes 10-20-2010 - • Nonmotile cell wall protected...

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BS 110 Notes 10-20-2010 Characteristic Flagella: Diatoms, Brown Algae, Oomycetes Rhizarians: amoebas, unicellular, threadlike pseudopods, phagocytosis o Foraminiferans, radiolarians Archaeplastidas: unicellular, colonial, multicellular, ancient protest ancestor that engulfed a cyanobacterium o Red/green algae, land plants Unikonts: unicellular, multicellular o Amoebas, opisthokonts (fungi, animalia) Origin of Multicellular Organisms Appeared/evolved ~750mya Greater complexity in organelles of eukaryotic cells let to many adaptations Eukaryotic cells have more genetic material/information and are more efficient metabolically Links between unicellular organisms and multicellular ones were colonies Cells of multicellular organisms have a fuction (specialize) and cells coexist and cooperate o Cells to tissues to organs to systems to individuals Multicellularity evolved many times Exam 2 above Chapters 24, 23, 25, 26, 27, 19, 28
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Super Group: Archaeplastid Kingdom: Plantae
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Unformatted text preview: • Nonmotile, cell wall, protected embryo, most multicellular, autotrophic, chloroplasts contain chlorophyhll a and carotenoids • Alteration of diploid and haploid generations o Non vascular plants – lack complex vascular tissue, few have simple vascular tissue, thallus Vascular tissue – tissue specialized for the long distance transport of materials inside the plant • No roots, stems, leaves • Body is commonly called a thallus Phyla • Phaeophyta – brown algae • Rhodophyta – red algae • Chlorophyta – green algae o All Have: Chlorophyll a Starch, cellulose – major form of carbohydrate stored Oogamous reproduction – large stationary egg • Hepatophyta - liverworts • Anthocerophyta - hornworts • Bryophyte – mosses o All Have Small, damp terrestrial areas Waxy covering Few have simple vascular tissue Sperm transferred through water and dew Similar to first land plants...
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