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  2. 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]

  3. Cell theory, fundamental scientific theory of biology according to which cells are held to be the basic units of all living tissues. First proposed by German scientists Theodor Schwann and Matthias Jakob Schleiden in 1838, the theory that all plants and animals are made up of cells marked a great.

  4. Jun 2, 2021 · In the book, Schwann precisely described the myelinated nerve fiber. His research led to the discovery of the cell that produces the myelin sheath that envelops the axon. In honor of his contribution, this was later eponymously named the Schwann cell [3, 7, 9].

    • Michał K. Owecki
    • 10.1007/s00415-021-10630-6
    • 2021
    • J Neurol. 2021; 268(12): 4921-4922.
  5. Oct 19, 2023 · The classical cell theory was proposed by Theodor Schwann in 1839. There are three parts to this theory. The first part states that all organisms are made of cells. The second part states that cells are the basic units of life. These parts were based on a conclusion made by Schwann and Matthias Schleiden in 1838, after comparing their ...

  6. May 18, 2018 · The German biologist Theodor Schwann (1810-1882) is considered a founder of the cell theory. He also discovered pepsin, the first digestive enzyme prepared from animal tissue, and experimented to disprove spontaneous generation. Theodor Schwann was born at Neuss near Düsseldorf on Dec. 7, 1810.

  7. en.wikipedia.org › wiki › Cell_theoryCell theory - Wikipedia

    The cell was first discovered by Robert Hooke in 1665 using a microscope. The first cell theory is credited to the work of Theodor Schwann and Matthias Jakob Schleiden in the 1830s. In this theory the internal contents of cells were called protoplasm and described as a jelly-like substance, sometimes called living jelly.

  8. Nov 21, 2023 · Theodor Schwann was a German zoologist famous for his development of the cell theory, identification of pepsin, discovery of Schwann cells and his disproving of spontaneous...

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