The Cell Theory states that (1) all living things are made of cells, (2) cells are the basic units of structure and function in living things, and (3) all cells come from other cells. This theory was developed from the scientific discoveries of several scientists between 1663-1855, including Hooke, Leeuwenhoek, Schleiden, Schwann, and Virchow, who observed that plants and animals are made of cells and that cells reproduce through dividing.

1. The Cell TheoryAll living things are made of cells.Cells are the basic units of structure and function in livingthings (in other words, a cell is the basic unit of life).(3) All cells come from other cells.Where did these three ideas come from?17501825190016001675

2. Robert Hooke- English Scientist- Identified 1st cells (1663)17501825190016001675

3. Anton van Leeuwenhoek- Dutch Businessman- Identified 1stliving cells (1674) 1st cells (1663)17501825190016001675

4. Matthias Schleiden- German ScientistObserved all plants are made of cells (1838)1st living cells (1674) 1st cells (1663)17501825190016001675

5. Theodor Schwann- German ScientistObserved all animals are made of cells (1839)1st living cells (1674)Plants made of cells (1838) 1st cells (1663)17501825190016001675

6. Rudolf Virchow- German ScientistObserved all cells come from other cells (1855)1st living cells (1674)Animals made of cells (1839)Plants made of cells (1838) 1st cells (1663)17501825190016001675

7. The Cell Theory ExplainedThe important scientific discoveries of these five scientists contributed to the development of “The Cell Theory”.All cells come from cells (1855)1st living cells (1674)Animals made of cells (1839)Plants made of cells (1838) 1st cells (1663)17501825190016001675

8. The Cell Theory ReviewAll living things are made of cells.Cells are the basic units of structure and function in living things (in other words, a cell is the basic unit of life).(3) All cells come from other cells.All cells come from cells (1855)1st living cells (1674)Animals made of cells (1839)Plants made of cells (1838) 1st cells (1663)17501825190016001675