4-1 the history of cell biology. the discovery of cells cell – the smallest unit of life that can...
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4-1 THE HISTORY OF CELL BIOLOGY
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THE DISCOVERY OF CELLS
Cell – the smallest unit of life that can carryout all of the processes of life
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THE DISCOVERY OF CELLS
There were many different contributions that led to our current understanding of cells
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THE DISCOVERY OF CELLS
Robert Hooke
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THE DISCOVERY OF CELLS
Robert Hooke English Scientist
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THE DISCOVERY OF CELLS
Robert Hooke English Scientist 1665 – looked at
cork under a microscope and saw little boxes; called them “Cells”
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THE DISCOVERY OF CELLS
1665 – looked at cork under a microscope and saw little boxes; called them “Cells”
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THE DISCOVERY OF CELLS
Anton van Leeuwenhoek
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THE DISCOVERY OF CELLS
Anton van Leeuwenhoek
Dutch trader; made microscopes
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THE DISCOVERY OF CELLS
1673 – saw first living organisms in pond water; called them “animalcules”
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THE DISCOVERY OF CELLS
Matthias Schleiden
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THE DISCOVERY OF CELLS
Matthias Schleiden German Botanist
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THE DISCOVERY OF CELLS
1838 – all plants are composed of cells
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THE DISCOVERY OF CELLS
Theodor Schwann
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THE DISCOVERY OF CELLS
Theodor Schwann German zoologist
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THE DISCOVERY OF CELLS
1839 – all animals composed of cells
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THE DISCOVERY OF CELLS
Rudolf Virchow
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THE DISCOVERY OF CELLS
Rudolf Virchow German physician
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THE DISCOVERY OF CELLS
1855 – Cells come from other cells
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THE DISCOVERY OF CELLS
1855 – Cells come from other cells
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THE DISCOVERY OF CELLS
The Cell Theory
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THE DISCOVERY OF CELLS
The Cell Theory
1. All living things are composed of one or more cells.
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THE DISCOVERY OF CELLS
The Cell Theory
2. Cells are the basic unit of structure and function
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THE DISCOVERY OF CELLS
The Cell Theory
3. Cells come only from the reproduction of existing cells