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