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The First Microscope
Using two convex lenses put in a tube, Hans and Zacharias Janssen create the first microscope, which will help scientist get a better look on cells. History Of Cell Biology -
Zacharia Janssen 1585-1632
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Period: to
Cell Theory And Its Contributors
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Anton Van Leeuwenhoek Oct 24, 1632-Aug 26, 1723
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The Word 'Cell' Is Introduced
Robert Hooke discovers dead cell walls in a cork using a microscope. The base of the name, cell, is named after the cellula rooms monks use which look like the dead cells he saw. Rhoads, Dan; Nov 5, 2007; Bite Size Bio; Sept 20, 2015 History Of Cell Biology -
Robert Hooke July 28, 1665-March 3, 1703
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Discovery Of Protozoa
Anton Van Leeuwenhoek discovers protozoa using a microscope, and is the first man to see a live cell under a microscope. -
Matthias Schleiden Apr 5, 1804-Jun 23, 1881
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Theodor Schwann Dec 7, 1810-Jan 11, 1882
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Rudolf Virchow Oct 18, 1831-Sept 5,1902
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Animal Cell Discovery
Theodore Schwann discovers animal cells. -
Formulation Of Cell Theory
Theodor Schwann and Matthias Schleiden come together to create the first version of Cell Theory.
1. The cell is the unit of structure, physiology, and organization of living things.
2. The cell retains a dual existance as a distinct entity and a building block of living things.
3. All cells only arise from pre-existing cells. Rhoads, Dan; Nov 5, 2007; "Bitesize Bio", Retrieved Sept 20, 2015 History Of Cell Biology -
Modern Cell Theory
- All living things are made up of cells.
- The cell is structural & functional unit of all living things.
- All cells come from pre-existing cells by division.
- Cells contains hereditary information which is passed from cell to cell.
- All cells are basically the same in composition.
- All energy flow of life occurs within cells.
