cell theory

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Good Morning!! I am Mr. Hamrick I am the substitute for Mrs. Cahill
Cell Theory
We are going to be learning the three parts of the Cell Theory
1. All organisms are made up of one or more cells. To be a living being, you are either a cell or made up of cells.
2. The cell is the basic unit of organization in organisms. This means that any part of the cell cannot be called living. Only the whole cell can be called living.
Cell Theory
3. All cells come from preexisting cells, which means new cells come from the division of other, existing cells
Some of you have asked how the Cell Theory came about.
In 1665, Robert Hooke used a microscope on a piece of cork and found empty little boxes and named them cells.
In the 1830's, Matthias Schleiden used a microscope to to study plants and decided they were made up of cells. Theodor Schwann did the same with animals and found animials are made of cells as well.
Years later, Rudolf Virchow stated that cells divide into new cells. And along with Hooke, Schleiden, and Schwann's conclusions, made up the cell theory.

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