1. Cell Theory

3. Cell Theory Important contributors
Anton Van Leeuwenhoek:
In 1600’s used a single lens microscope to view bacteria.

4. Cell Theory
Leeuwenhoek’s single lens microscope

5. Cell Theory Robert Hooke:
Looked at cork and called the structures cells.

6. Cell Theory Robert Brown:
In the 1800’s was the first to describe the nucleus.

7. Cell Theory
Matthias Schleiden:
Looked at plant cells.
Developed idea that all plants are made of cells.

8. Cell Theory
Theodor Schwann:
Looked at animal cells.
Extended cell theory to animals.

9. Cell Theory
Rudolph Virchow:
German doctor.
Developed one of the central ideas of cell theory, cells come from pre-existing cells.

10. Cell Theory – fundamental idea of biology
Three main parts of the theory.

11. 1) All living things are made of one or more cells.
Cell Theory
1) All living things are made of one or more cells.

12. Cell Theory
2) Cells are the basic units of structure and function in living things.

13. 3) All cells come from other cells.
Cell Theory
3) All cells come from other cells.