The cell theory scientists were Theodor Schwann and Matthias Jakob Schleiden. Schleiden suggested that all the different parts of plants are made of cells. Schwann came to the same conclusion as Schleiden and stated further that animals were also composed of cells.Continue Reading
Schleiden further suggested that cells were made by a crystallization process either within other cells or from the outside. However, this theory was later refuted by scientists Rudolf Virchow, Robert Remak and Albert von Kölliker.
Nevertheless, Rudolf Virchow later made contributions to Schleiden’s and Schwann’s work. He proposed that living cells must develop from pre-existing cells. However, this idea had already been proposed by Robert Remak, who further published observations on cell division disapproving Schwann’s and Schleiden’s generation schemes. Remak stated that binary fission was how new animal cells were made. No further contributions were made on cell theory.
The modern interpretation of cell theory states: