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Notes 17.3
Domains & KingdomsSection 17.3
Domain Bacteria
E. coli
· Kingdom - Eubacteria· prokaryotic· unicellular· autotrophic or heterotrophic· cell walls contain peptidoglycan (chain of a alternating sugars; porous but strong)· ex. E. coli, Lactobacillus acidophilus
Lactobacillus acidophilus
Domain Archaea· Kingdom - Archaea· ancient, but more closely related to Eukarya· prokaryotic· cells walls WITHOUT peptidoglycan· unicellular· autotropic or heterotrophic· extremophiles - live in extreme environments· ex. Methanogens halophiles (loves salt)
Methanogens halophiles
Domain Eukarya· Kingdoms - Protista, Fungi, Plantae, & Animalia· all eukaryotic
Kingdom Protista· protists - eukaryotic organisms that can be unicellular, colonial, or multicellular· NO organs· 3 groups
algae - autotrophs, plant-likeprotozoans - heterotrophs, animal-like
funguslike - autotrophs· ex. amoebas, slime mold, mildew, euglena
Notes 17.3
Kingdom Fungi· fungus - unicellular or multicellular eukaryote that absorbs nutrients from organic materials in its environment· heterotrophic· lack motility (ability to move)· cell walls with chitin· ex. mushrooms, yeast
Kingdom Plantae· multicellular· cell wall with cellulose· autotrophic (contain chloroplasts for photosynthesis)· lack motility· ex. moss, ferns, trees, flower plants
Animalia· all animals are heterotrophic, multicellular eukaryotes· no cell walls· complex organ systems
Viruses - NOT LIVING· nucleic acid surrounded by a protein· are NOT included in biological classification system