Cell theory
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Last updated 12:47 PM on 9/12/23
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13 Terms
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Robert Hooke
* first to demonstrate, illustrate cork cells in his book ^^Micrographia.^^
* first person to use the term ‘cell’.
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* first person to use the term ‘cell’.
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Anton Van Leeuwenhoek
* first person to observe blood cells and sperm cells with microscope.
* introduced the first unicellular organism ‘animalcules’.
* introduced the first unicellular organism ‘animalcules’.
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Matthias Schleiden
discovered ==plant cells==
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Theodor Schwann
Discovered ==animal cells==
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Rudolf Virchow
proponent of the 3rd postulate.
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FIRST POSTULATE
all living organisms are composed of one or more cells.
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SECOND POSTULATE
cell is the basic unit of life in all living things.
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THIRD POSTULATE
all cells come from pre-existing cells (mitosis, meiosis)
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Microscopy
science of magnification and resolution
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factors affecting resolution:
1. wavelength of light used
2. numerical aperture
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early microscope
* 6x-10x magnifying power
* 1590
* 1590
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Zaccharias Jansen, Hans Jansen
* 9x magnification (first)
* made the microscope
* made the microscope
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Anton Van leeuwenhoek
first man to use a real microscope in biology
Note 
Flashcards (21)