The Origin of the 3 Cell Theory

The Origin of the 3 Cell Theory

Storyboard Text

  • Year 1625
  • AHA! At last , an invention that can help you see even the very small things. I will name you as the MICROSCOPE!
  • Formulation of cell theory began thanks to the invention of Galileo Galilei which allowed the naked human eyes to see even the smallest things. And he proudly named it as the...
  • Years have passed , there is another man of science who innovated the microscope. His name is Robert Hooke , he is very interested in the world of microorganism which inspired his book entitled "Micrographia". In the year 1665 , he became known for observing a slice of cork under a microscope
  • I wonder , what are these composed of?
  • Upon observing , Robert noticed that these images under the microscope looks like a monastic cell (A cell is a small room used by a hermit, monk, nun or anchorite to live and as a devotional space.) Therefore , calling these small boxes ...
  • Cells! I will call these little boxes as "Cells".
  • The human mouth is more terrifying than I expected. I did not expect that there will be a company of them , and they are swimming nimbly than any I had ever seen up to this time.
  • Meanwhile , in the year 1670 , Antonie Leeuwenhoek also improved the microscope where he can see even a single celled organism. He named these organism as "Animalcules" which means , animal miniature. He is also the one that discovered the bacteria and protozoas. He discovered it from pond waters and the human mouth.
  • From years 1838-1839 , Matthias Schleiden studied plants. He noticed that they all have the same characteristic of having made up of cells.
  • The same year , Theodor Schwann also noticed that all animal tissue are composed of cells. Together , they created the 1st and 2nd cell theory
  • 1st Theory : All living things are composed of cell(s).
  • 2nd Theory : Cells are the basic unit of living things / life.
  • Cells are made from crystalization!
  • P.S : At the end , Schleiden was calmed and accepted the proposal
  • 3rd theory : Cells are made by pre-existing cells.
  • Will both of you stop? *ehem* my name is Rudolf Virchow. And I am here to tell the both of you that cells are made by also pre-existing cells and here is my proof.
  • But on the 3rd theory , their theories contradict.
  • Cells are made by pre-existing cells!
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