what is cell theory
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Cell theory states that: All living organisms are composed of cells. Cell is the fundamental unit of life. All new cells come from pre-existing cells.
The three parts of the cell theory are as follows:
- All living things are made up of cells,
- Cells are the smallest units (or most basic building blocks) of life, and
- All cells come from preexisting cells through the process of cell division.
Cell Theory. In 1838, Jakob Matthias Schleiden (1804 - 1881), a German botanist, first proposed the idea that all plants consist of cells. A year later, in 1839, Theodor Schwann (1810 - 1882), a German zoologist, independently asserted that all animals and plants are made up of cells.
This joint finding forms the basis of the cell theory.
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