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History of the Cell Theory

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Presentation on theme: "History of the Cell Theory"— Presentation transcript:

1 History of the Cell Theory

2 Robert Hooke (1665) looked at cork cells w/ a simple compound microscope

3 Anton van Leeuwenhoek (1674) found living organisms in pond water

4 Matthias Schleiden (1838) claimed all plants are made of cells

5 Theodor Schwann (1839) claimed all animals are made of cells

6 Rudolf Virchow (1855) new cells can only be produced from previously existing cells "Omnis cellula e cellula"...

7 Cell Theory All living things are made of cells
Cells are the basic unit of structure in living things New cells are produced from existing cells

8 Scientist Summary Scientist Importance Robert Hooke
Cork Cells with a simple compound microscope Anton van Leeuwenhoek Living organisms in pond water Matthias Schleiden Plants are made of cells Theodor Schwann Animals are made of cells Rudolf Virchow New cells must come from old cells

9 Types of Organisms Unicellular – composed of a single cell
Multicellular – composed of many cells

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