The Cell Theory

By Keelin Montey

The Cell Theory

The cell theory is a scientific description of the properties of cells.

The Three Main Parts of the Theory

#1- All organisms are made of one or more cells.

#2- Cells are the most basic unit of structure,function, and organization.

#3- All cells come from other living cells.


There were many observers that helped create the cell theory. One of them was the famous, Robert Hooke. Some others were Leeuwenhoek, Schleiden, Schwann, and Virchow.

Robert Hooke

Robert Hooke published a book called Micrographia. It was a book that described functions and works of microscopes and telescopes. When Hooke studied work through a microscope, he created a drawing of the dead plant cells of a cork (as shown below). He was the one to name the cells a "cell." He named it a cell because to him the image looked as it could be cells for monks'.

Anton van Leeuwenhoek

Anton's carrier that got him to the stage of helping with the cell theory started when he had an interest in lens making. He created a very small lens which was perfect for high magnification for the microscopes. He made the first high quality, high magnification microscope which was perfect for looking at the cells.

Theodor Schwann

Schwann helped create the cell theory by creating the phrase," All living things are composed of cells and cell products. Also, he extended the knowledge of plant cells and their functions.

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Matthias Scheilden

Matthias was the co-founder of the cell theory. He studied plant structure under a microscope. He stated that the different parts of the plant structure are composed of cells.

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Rudolf Virchow

Rudolf extended the studies of Theodor Schwann and discovered leukemia cells. He and his teammates helped to accept the statement that living cells only come from other cells.

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