By: Emma Mauritsen

The Cell Theory

Robert Hooke

Hooke first developed the microscope and then looked at a dead cork cell. He saw little dots that looked like rooms/cells. And so forth came the name for cells.


The cell theory states that all living things are made of cells, the cell is the basic unit of life, and that all new cells come from already existing cells.

Anton Van Leeuwenhoek

Leeuwenhoek wag the first to see living cells. He also discovered the first protozoa and bacteria.


Theodor Schwann

Schwan said that animal tissue, not only plant tissue, was made of cells. He thought that cells are organisms and all living things are made of one or more cells. Schwann also thought that the cell is the basic structure of everything.


Rudolf Virchow

Virchow said that all cells come from existing cells and that disease cells come from healthy cells.


Every little thought helped a lot!

Matthias Schleiden

Schleiden said that cells are the basic building blocks of plants. He also said that all plants are made of cells.