The theory of cells
Storyboard Text
- oh no I forgot about our quiz today!
- yeah! that would be big help!
- oh don't worry about it, I studied about cell theory yesterday, do you want me to tell you all about it?
- YEAR 1665
- In 1665 Robert Hooke's discovery led to the development of classical cell theory.
- I published Micrographia, a book filled with drawings and descriptions of the organisms I saw with the microscope.
- After observing a cork under the microscope, I observed box-shaped structures, which I called “cells” as they reminded me of the cells, or rooms, in monasteries.
- The invention of the microscope helped me to the discovery of classical cell theory,
- year 1839
- The classical cell theory was proposed by Theodor Schwann in 1839. There are three parts to this theory.
- The first part states that all organisms are made of cells. The second part states that cells are the basic units of life.
- The second part states that cells are the basic units of life. after comparing our observations of plant and animal cells
- Schwann and Matthias Schleiden in 1838 concluded that cells are basic units of life
- year 1838
- I stated omnis cellula e cellula (all cells come from cells)
- I discovered that cells come from pre-existing cells that have multiplied
- The third part was described by Rudolf Virchow in 1858
- year 1858
- Thanks for helping me out! I am glad you explained to me the theory of cells now I can answer our quiz with ease!
- and that's about it...
- the end...
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