https://padlet.com/achel44yt/eoxzy2yoa3m192jz Biology UVM en-us 2020-11-03 19:07:58 UTC 2020-11-03 22:03:47 UTC hello@padlet.com https://padlet-uploads.storage.googleapis.com/530169450/e4641851c2e6d1705d5758bb0e7d9ece/Screen_Shot_2020_08_02_at_7_48_54_PM.png achel44yt https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887502341 1674
Study new approaches for creating lenses to observe cloth.
Leeuwenhoek’s microscope was more powerful than Hooke’s compound microscope.
From investigating and experimenting with his microscope, Leeuwenhoek became one of the first scientists to refer to living cells when he observed an abundant number of single-celled organisms, which he called animalcules (plant & animal), swimming in a drop of pond water]]> 2020-11-03 19:13:16 UTC https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887502341 achel44yt https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887506618 1665
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.]]> 2020-11-03 19:14:27 UTC https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887506618 achel44yt https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887552838 1804
In 1804 they conducted experiments that proved cells had their own cell walls and were independent of each other.]]> 2020-11-03 19:27:06 UTC https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887552838 achel44yt https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887554891 1828
He has been given credit for discovering cell biology and cells in plants and the actual discovery of the process of osmosis. (1828)]]> 2020-11-03 19:27:42 UTC https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887554891 achel44yt https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887559251 1832
In 1832 Barthelemy Dumortier of France described "binary fission" (cell division) in plants. He observed the formation of a mid-line partition between the original cell and the new cell, which, Dumortier noted, "seems to us to provide a perfectly clear explanation of the origin and development of cells, which has hitherto remained unexplained" (Harris 1999, p. 66) These observations led him to reject the idea that new cells arise from within old ones, or that they form spontaneously from noncellular material. The discovery of cell division is usually attributed to Hugo von Mohl, but Dumortier proceeded him in this regard. Von Mohl did coin the word "protoplasm" for the material contained in the cell.]]> 2020-11-03 19:28:56 UTC https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887559251 achel44yt https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887570756 1858
Virchow strove to integrate Clinical Medicine,
Pathologic Anatomy, and Physiology. As the founder
of Cellular Pathology, Virchow stressed the concepts
that all cells came from other cells and that disease is
an alteration of the normal structure and function of
these cells. With Virchow oncology made a giant step.]]> 2020-11-03 19:32:12 UTC https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887570756 achel44yt https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887751290 1839
Schleiden suggested that every structural part of a plant was made up of cells or the result of cells. He also suggested that cells were made by a crystallization process either within other cells or from the outside. However, this was not an original idea of Schleiden.
Schleiden's theory of free cell formation through crystallization was refuted in the 1850s by Robert Remak, Rudolf Virchow, and Albert Kolliker. In 1855, Rudolf Virchow added the third tenet to cell theory. In Latin, this tenet states Omnis cellula e cellula.
This translated to:

All cells arise only from pre-existing cells
However, the idea that all cells come from pre-existing cells had in fact already been proposed by Robert Remak; it has been suggested that Virchow plagiarized Remak and did not give him credit.]]> 2020-11-03 20:27:55 UTC https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887751290 achel44yt https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887993601 1852
Remak published observations in 1852 on cell division, claiming that Schleiden and Schawnn were incorrect about the generation schemes. Instead, he said that binary fission, which was first introduced by Dumortier, was the way new animal cells were reproduced. Once this principle was added, the classical cell theory was completed. Virchow and Kolliker had the same conclusions]]> 2020-11-03 22:02:08 UTC https://padlet.com/achel44yt/eoxzy2yoa3m192jz/wish/887993601