Robert Brown contributed to cell theory by showing the radical motion of molecules within a cell under the light of a microscope. The Brownian method was named after Brown's discovery of the way that the molecules moved. More » Science Biology Cells

Felix Dujardin made his largest contribution to cell theory when he proposed the classification of a new type of single-celled organism which he called rhizopoda. Felix Dujadin's rhizopoda are now known as protozoans. More » Science Biology Cells

The cell theory, which is comprised of three different but related elements, was discovered and developed by Matthias Schleiden, Theodor Schwann and Rudolph Virchow. All three men were scientists in Germany who lived dur... More » Science Biology Cells
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The modern cell theory states that living organisms are made of cells, that all cells come from other cells and that cells are the most basic life form. As scientific advancements are made, definitions of theories, like ... More » Science Biology Cells

Robert Brown was a 19th-century botanist who provided one of the earliest detailed descriptions of the cell nucleus. This and other discoveries were due to Brown's pioneering use of the microscope in his research. More » Science Biology Botany

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 furt... More » Science Biology Cells

The three scientists who formulated cell theory were Theodor Schwann, Matthias Jakob Schleiden and Rudolf Virchow. Schwann and Schleiden worked together to formulate the theory in 1838, and Virchow contributed to the the... More » Science Biology Cells