A German physiologist who, in collaboration with M. J. Schleiden, proposed the cell theory (and coined the term), according to which all plant and animal tissues are composed of cells, and within an individual organism all the cells are identical (see also Virchow, Rudolf). This was based on a botanical discovery by Schleiden, which he described in 1838, and in 1839 Schwann showed that it also applied to animals. Schwann graduated in medicine at Berlin in 1834, was appointed professor of anatomy at the University of Louvain in 1838, and became a professor at Liège in 1847. The cell theory arose from his studies of yeasts.
Subjects: Plant Sciences and Forestry.