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Hooke
The cell was first discovered by Robert Hooke in 1665, which he described in his book Micrographia. One observation was from very thin slices of cork. Hooke discovered a multitude of tiny pores that he named "cells". What Hooke had thought were cells, were actually empty cell walls of plant tissues. His cell observations gave no indication of the nucleus and other organelles found in most living cells. -
Leeuwenhoek
Anton van Leeuwenhoek is another scientist who saw these cells soon after Hooke did. He made use of a microscope containing improved lenses that could magnify objects almost 300-fold, or 270x. With these microscopes he discovered single cell motile object. Reasoning that motility is a quality of life he said these where living beings. -
Leeuwenhoek (2)
he sent the Royal Society a copy of his first observations of microscopic single-celled organisms. Previously, the existence of single-celled organisms was entirely unknown. Thus, even with his established reputation with the Royal Society as a reliable observer, his observations of microscopic life were initially met with both skepticism and open ridicule. Eventually however the royal society sent representatives to check his facts -
brown
In a paper read to the Linnean society in 1831 and published in 1833, Brown named the cell nucleus. The nucleus had been observed before, perhaps as early as 1682 by Leeuwenhoek, and Franz Bauer had noted and drawn it as a regular feature of plant cells in 1802, but it was Brown who gave it the name it bears to this day (while giving credit to Bauer's drawings). Neither Bauer nor Brown thought the nucleus to be universal, and Brown thought it to be primarily confined to Monocotyledons. -
schlieden
schlieden wrote "Contributions to Phytogenesis" , in which he stated that the different parts of the plant organism are composed of cells. He also recognized the importance of the cell nucleus, discovered in 1831 Robert Brown, and recognized its connection with cell division. this helped to disprove the spontaneous generation theory by adding an important connection to cell division theroy -
scwhann
Schwann discovered the cells that envelope the nerve fibers, now called Schwann cells in his honor. In 1837, Matthias Jakob Schleiden viewed and stated that new plant cells formed from the nuclei of old plant cells. While dining that year with Schwann, the conversation turned on the nuclei of plant and animal cells. Schwann remembered seeing similar structures in animal cells and instantly realized the importance of connecting the two phenomena. -
virchow
Virchow is credited with several very important discoveries. His most widely known scientific contribution is his cell theory, which built on the work of Theodor Schwann. He showed the origins of cells was the division of pre-existing cells.This is important because it finally disproved the spontaneous creation theory. This is the final piece to the cell division theory -
bibliography
"Rudolf Virchow." Wikipedia. Wikimedia Foundation, n.d. Web. 06 Oct. 2016. "Cell Theory." Emaze Presentations. N.p., n.d. Web. 06 Oct. 2016. "Home." Famous Scientists. N.p., n.d. Web. 06 Oct. 2016.
