The cell theory is broken into three parts: All organisms are made up of cells, cells are the basic unit of structure and function, and cells come from preexisting cells. Here are a few scientists that helped develop this theory.
I'm Robert Brown, a botanist from Scotland that discovered the nucleus in the cell by studying plants under the microscope.
I'm Robert Hooke, who came up with the word cell because I thought the structures in the cork board looked like the cells that priest live in.
I'm Theodor Schwann, I came up with the theory that all animals are made up of cells by studying different animal parts.
I'm Matthias Schleiden, who worked with Schwann and discovered all plants are made up of cells.
I'm Robert Virchow, a German scientist who came up with the idea that all cells come from preexisting cells.