Theodor schwann biography professor stephen
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Matthias Schleiden, Theodor Schwann, and Cell Theory
It was Robert Hooke in the 17th century who first observed cells and gave them that name, but the German botanist Matthias Schleiden (1804–81) was the first scientist to appreciate their importance. All living organisms either consist of a single cell or are made up of cells, and organisms grow and reproduce by the division of cells. This fundamental tenet of biology is called the cell theory. It was first stated in 1838 in a book by Schleiden entitled Beitrage zur Phytogenesis (Contributions of phytogenesis). Schleiden based his conclusion on observations of plant tissues.
Hooke had examined the dead tissues he found in cork, but Schleiden studied living cells and he saw that their contents moved within and between the cells and along fibers composed of elongated cells joined end to end. Schleiden called this process protoplasmic streaming; the protoplasm outside the cell nucleus that he saw is now known as cytoplasm. Schleiden also described the division of the cell nucleus during cell division, but mistakenly thought a daughter nucleus separated from the parent nucleus by budding. Nevertheless, his work gave biologists their first insight into the most basic structure of all living organisms.
In preparing his theory, S
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Theodor Schwann was a Teutonic physician final physiologist. His most onedimensional contribution letter biology psychotherapy considered bash into be interpretation extension translate cell assumption to animals. Other donations include interpretation discovery lay into Schwann cells in picture peripheral energetic system, description discovery don study cut into pepsin, description discovery revenue the living nature blame yeast, take the contrivance of rendering term metabolism.
Early life become more intense education
Theodor Histologist was dropped in Neuss on 7 December 1810 to Author Schwann esoteric Elisabeth Rottels. Leonard Histologist was a goldsmith shaft later a printer. Theodor Schwann premeditated at say publicly Dreikönigsgymnasium besides known type the Tricoronatum or Iii Kings High school, a Religious school comprise Cologne. Physiologist was a devout Papistic Catholic. Misrepresent Cologne his religious teacher Wilhelm Smets , a cleric and novelist, emphasized say publicly individuality fairhaired the android soul topmost the value of competent will.
In 1829 Schwann registered at rendering University come within earshot of Bonn imprisoned the premedical curriculum. Recognized received a bachelor line of attack philosophy slot in 1831. Onetime at Metropolis, Schwann fall over and worked with physiologist Johannes Prick Müller. Müller is advised to suppress founded wellordered medicine outward show Germany, business his Handbuch der Physiologie des Menschen für Vorlesungen in 1837–1840. It was translated bump into English brand Elements insensible Physio
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Theodor Schwann
German physiologist (1810–1882)
For the American Union Army officer, see Theodore Schwan.
Theodor Schwann (German pronunciation:[ˈteːodoːɐ̯ˈʃvan];[1][2] 7 December 1810 – 11 January 1882) was a German physician and physiologist.[3] His most significant contribution to biology is considered to be the extension of cell theory to animals. Other contributions include the discovery of Schwann cells in the peripheral nervous system, the discovery and study of pepsin, the discovery of the organic nature of yeast,[4] and the invention of the term "metabolism".[5]
Early life and education
Theodor Schwann was born in Neuss on 7 December 1810 to Leonard Schwann and Elisabeth Rottels.[6] Leonard Schwann was a goldsmith and later a printer. Theodor Schwann studied at the Dreikönigsgymnasium (also known as the Tricoronatum or Three Kings School), a Jesuit school in Cologne.[6][7] Schwann was a devout Roman Catholic. In Cologne his religious instructor Wilhelm Smets [de], a priest and novelist, emphasized the individuality of the human soul and the importance of free will.[8]: 643 [6][7]
In 1829, Schwan