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cell theory

cell theory The theory that was born of the findings of Matthias Schleiden in 1838 and Theodor Schwann in 1839, who postulated, respectively, that plants and animals were made up of cells and that these units were basic to the structure and function of all organisms. Previously, in 1665, Robert Hooke (1635–1703), while examining cork under the microscope, had observed that its structure consisted of hollow boxlike units, which he called `cells'. At the time, however, he did not realize the significance of these units, which were in fact dead cells.

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"cell theory." A Dictionary of Biology. . Encyclopedia.com. 23 Aug. 2017 <http://www.encyclopedia.com>.

"cell theory." A Dictionary of Biology. . Encyclopedia.com. (August 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/cell-theory-1

"cell theory." A Dictionary of Biology. . Retrieved August 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/cell-theory-1

cell theory

cell theory The basic theory (proposed by M. J. Schleiden and T. Schwann in 1838) that all animals and plants are made up of cells, and that growth and reproduction are due to division of cells.

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"cell theory." A Dictionary of Zoology. . Encyclopedia.com. 23 Aug. 2017 <http://www.encyclopedia.com>.

"cell theory." A Dictionary of Zoology. . Encyclopedia.com. (August 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/cell-theory-0

"cell theory." A Dictionary of Zoology. . Retrieved August 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/cell-theory-0

cell theory

cell theory The basic theory (proposed by M. K. Schleiden and T. Schwann in 1838) that all animals and plants are made up of cells, and that growth and reproduction are due to division of cells.

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"cell theory." A Dictionary of Plant Sciences. . Encyclopedia.com. 23 Aug. 2017 <http://www.encyclopedia.com>.

"cell theory." A Dictionary of Plant Sciences. . Encyclopedia.com. (August 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/cell-theory

"cell theory." A Dictionary of Plant Sciences. . Retrieved August 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/cell-theory