New cells are produced by existing cells , All living things are made of cells, Cells are the basic unit of structure and function in all living things are the 3 tenets of cell theory.
What is Cell Theory ?
Cell theory states that the cell is the basic structural and functional unit of living organisms. In 1839, the German physiologist Theodor Schwann and the German botanist Matthias Schleiden proclaimed that the cell is the "elementary particle of life" in both plants and animals, acknowledging that there are unicellular and multicellular organisms. I was. This theory represents a major conceptual advance in biology and has brought renewed attention to living processes occurring within cells.
The cell theory has three principles. 1) All living things are made up of cells. 2) Existing cells are produced by other living cells. 2) Existing cells are produced by other living cells.
For example, bacteria, which are single-celled organisms, divide (after growing a little) in half to create new bacteria. Similarly, your body creates new cells by dividing existing cells. In both cases, cells develop only from previously existing cells.
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