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Cell theory & types of cells
 

Cell theory & types of cells

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    Cell theory & types of cells Cell theory & types of cells Presentation Transcript

    • Cell Theory
      & Types of Cells
    • Cell Theory
      All living things are made up of one or more cells and their products
    • Cell Theory
      The cell is the simplest unit that can carry out all life processes.
    • Cell Theory
      All cells come from other cells; they do not come from non-living matter
    • Classification of Cells
    • Prokaryotic Cells
      simple, unicellular organisms (e.g. archaea and bacteria)
      no cell nucleus
      no membrane-bound organelles
    • Prokaryotic Cells
      archaea
      e. coli bacteria
    • Eukaryotic Cells
      much larger than prokaryotic cells
      contain a nucleus and other membrane-bound organelles
      includes all protists, fungi, animals, and plants
    • Single-Celled Eukaryotes
      amoeba
    • Single-Celled Eukaryotes
    • Single-Celled Eukaryotes
    • Multi-cellular Organisms
      Multi-cellular eukaryotes can be further classified into plant cells and animal cells
      plant cell
      animal cell
    • Plant Cells
    • Plant Cells
    • Animal Cells
    • Specialized Cells
      Eukaryotic organisms:
    • Specialized Cells
      Complex organisms contain many different types of cells that perform different functions
      Specialized cells have physical and chemical differences that allow them to perform one job very well
    • Specialized Plant Cells:transport cells (xylem & phloem)
    • Specialized Plant Cells:storage cells (amyloplasts)
    • Specialized Plant Cells:photosynthetic cells (contain many chloroplasts)
    • Specialized Plant Cells:root cells (epidermal)
    • Specialized Plant Cells:guard cells (stomata)
    • Specialized Animal Cells:Blood cells
    • Specialized Animal Cells:Skin cells
    • Specialized Animal Cells:Bone cells
    • Specialized Animal Cells:Muscle cells
    • Specialized Animal Cells:Gamete cells (sperm & egg)
    • Specialized Animal Cells:Fat cells
    • Specialized Animal Cells:Nerve cells (neurons)
    • Specialized Animal Cells:Rods & cones
    • Specialized Animal Cells:Lung cells