2. Cells

3. Prokaryotes aka Bacteria
Contains:
DNA
Cell membrane
Cell wall
Cytoplasm
Ribosomes (have no membrane)

4. Life Processes Eating Drinking
Excreting waste (urinating, defacating, sweating, exhaling…)
Making babies
Respirating
Birth, Growth, Death

5. First to View Cells
In 1665, Robert Hooke used a microscope to examine a thin slice of cork (dead plant cells)

6. First to View Cells
Hooke called them “CELLS” because they looked like the small rooms that monks lived in called Cells

7. Anton van Leeuwenhoek 1674 Dutch microscope maker
first to view living cells
Leeuwenhoek
used simple, handheld microscope to view pond water & teeth scrapings

8. History of Cells & the Cell Theory
Cells only come from the division of other cells
Rudolph Virchow

9. Another important guy…
Botanist Matthias Schleiden
Plants are made up of cells!

10. One more important guy Concluded animals are made of cells
Zoologist Theodore Schwann
Concluded animals are made of cells

11. THE BIG CELL THEORY All living things are composed of cells.
Cells are the basic unit of structure and function in living things.
All cells are produced from other cells.

12. Number of Cells Organisms may be: Unicellular one cell Multicellular
Made of many cells

13. ALL Cells, must have these things:
1. Cell Membrane
2. Ribosomes
3. Cytoplasm
4. DNA

14. Living organization