| A | B |
| What are cells? | The basic units of life? |
| What is the study of cells called? | Cytology |
| When did Hooke discover cells? | 1650 |
| What was Hooke looking at? | Cork sections |
| Leeuweekhoek discovered what type of cells and in what year? | 1675 and living cells |
| Schleiden discovered what type of cells and in what year? | 1838 and plant cells |
| Schwann discovered what type of cells and in what year? | 1839 and animal cells |
| Virchow discovered what about cells and in what year? | 1850 and cell reproduction |
| What are the two primary points of the cell theory? | 1. Cells are the unit of structure and function and 2. All cells come from pre-existing cells. |
| What is an eukaryote? | A cell with a nucleus |
| What is a prokaryote? | A cell without a nucleus |