The Cell Theory News

By: Lynn Cao

Theodor Schwann

Theodor Schwann was a scientist who discovered that all animals were made up entirely of cells. Schwann was born on December 7, 1810 in Neuss, Germany and died on January 2, 1882. As a young child, Theodor Schwann was very intelligent. Schwann had attended three different colleges. He first attended the Jesuit College of the Three Crowns in Cologne in 1829. Then, he attended University of Bonn where he began to develop his medical career. After receiving his doctorate in medicine in 1834, he joined Müller's laboratory at the University of Berlin, which was Johannes Müller, a renowned physiologist’s laboratory that he assisted at University of Bonn. One of Schwann's major discoveries were establishing the basic principles of modern cell theory (Schlager, Lauer 1). He published a contribution to biology, which showed that animals are entirely made up of cells. According to "Theodor Abrose Hubert Schwann" Biography in Context, after discussing Matthias Schleiden's work and discovering in a lab that the cell structure in a dorsal ford was almost the same as that of plants, Schwann concluded that a cell structure was common to all living organic matter. Their cell theory was incomplete and also incorrect. "... it only focused on the cell structure, but don't explore in great detail the cell contents, nor the chemical processes--dubbed "metabolism" by Schwann--carried out inside the cells." ("Theodor Abrose Hubert Schwann", 2006). Another contribution made by Schwann to biology is his proof of the living organisms that were convinced to be crystals in the process of fermentation. Antonie van Leeuwenhoek was seeing crystals during the process of fermentation. Schwann was sure that those crystals were actually living organisms. He proved that statement by going through a series of experiments. Overall, Schwann has impacted our world of biology but a landslide.

Enrollment At Colleges

Theodor Schwann attended three different colleges before receiving his doctorate. He enrolled at Jesuit College of the Three Crowns in Cologne. His plans were to enter the church but later changed what he wanted to do a few years later. He then attended University of Bonn which was where he prepped for his future medical career. He assisted the physiologist and anatomist, Johannes Müller in his laboratory. After studying there, he moved to Würzburg in 1831, then moved again to Berlin where Müller was teaching anatomy and physiology. He received his doctorate in medicine in 1834 for the development of chick eggs an a dissertation on air. Then he officially joined Müller's laboratory at the University of Berlin.


dissertation- a written essay, treatise, or thesis, especially one written by a candidate for the degree of Doctor of Philosophy.

dorsal- a. situated on or toward the upper side of thebody, equivalent to the back, or posterior, inhumans. b. situated on or toward the posterior plane inhumans or toward the upper plane inquadrupeds.

dub- to invest with any name, character, dignity, or title;style; name; call:

fermentation- a change brought about by a ferment, as yeastenzymes, which convert grape sugar into ethylalcohol.

physiology- the branch of biology dealing with the functionsand activities of living organisms and their parts,including all physical and chemical processes.