MICR 1531 Procaryotic Cells

MICR 1531 Procaryotic Cells - Procaryotic cells Eucaryotic...

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Procaryotic cells Eucaryotic cells: fungi, algae, protozoans, heminth worm, animal cells, and plant cells. Procaryotic cells: Eubacteria (more common bacteria): Eubacteria (-) w/cell wall Eubacteria (+) w/ cell wall Eubacteria w/ no cell wall (mycoplasma) B. Archaebacteria: don’t produce peptidoglycan. Live in extreme environments, (high temp, high salt, or low PH) Bacteria: the evolutionary history of bacteria extends back 3.5 billion years ago. Procaryotic Cell: Bacteria Appendages: flagella/axial filaments, Pilli, Fimbriae Cell envelope: Glycocalyx (capsules, slime layers) Cell Wall, Cell membrane Protoplasm: Cell pool, Ribosomes, mesosomes, granules, nucleoid/chromatin bodies. Appendages: They aren’t present on all species. Can be divided into 2 major subgroups. A. Those that provide motility. Flagella and axial filaments B. Those that provide attachments. Fimbriae and pilli Flagella: The primary function of flagella is to confer motility or self-propulsion that is, the capacity of a cell to swim freely through an aqueous habitat. Structure of flagella: Composed of 3 distinct parts: the filament, the hook, and the basal body.
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MICR 1531 Procaryotic Cells - Procaryotic cells Eucaryotic...

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