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Development of the Cell theory
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Development of the Cell theory

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Presentation on the development of the cell theory

Presentation on the development of the cell theory

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Development of the Cell theory Development of the Cell theory Presentation Transcript

  • Development of the Cell Theory
  • Zacharias Janssen 1590
  • Robert Hooke 1663
    • observed a thin slice of cork.
    • called the empty spaces “ cells ”
  • Anton van Leeuwenhoek 1674
    • observed drops of lake water
    • saw animalcules or “little animals”
  • Matthias Jakob Schleiden 1838 “ All plants are made up of cells.”
  • Theodor Schwa nn 1839 “ All animals are made up of cells.”
  • The Cell Theory
    • All living things are composed of cells.
    • The cell is the basic 1 unit of life.
    • 1 smallest
  • Rudolf Virchow 1855 “ All living cells arise from pre-existing cells.”
  • The Cell Theory
    • All living things are composed of cells.
    • The cell is the basic 1 unit of life.
    • All living cells arise from pre-existing 2 cells.
    • 1 smallest
    • 2 already alive