| A | B |
| Each Cell Must: | Respond, Grow, Reproduce, Use Energy |
| Homeostasis | A cell(s) maintain a life supporting internal environment. |
| Robert Hooke | Coined the term "Cell." |
| Anton von Leeuwenhoek | Built a simple microscope and observed blood cells and bacteria. |
| Schleiden & Schwann | Concluded animals and plants are made of cells. |
| Cell Theory 1 | All living things are made of cells |
| Cell Theory 2 | Cells come only from other cells. |
| Cell Theory 3 | All cell life functions occur within cells. |
| Cell Theory 4 | Cells have herediatry info-DNA |
| Prokaryotic Cells | Does not have nucleus: means before nucleus. |
| Eukaryotic Cells | Means "true nucleus: Cells have a nucleus. |
| Two Types of cells: | Prokaryotic and Eukaryotic |