| A | B |
|---|
| prokaryotic cells | Primitive cell that have no membrane around the nucleus |
| eukaryotic cells | More advanced cells that have a membrane around the nucleus |
| organelle | Structure inside of a cell that has a specific function |
| cell wall | Organelle that gives shape to plant, fungi, and bacteria cells |
| cell membrane | Separates cell from surroundings and controls what enters and leaves the cell |
| cytoplasm | Watery material between the cell membrane and nuclear membrane |
| nucleus | Control center for cell metabolism and reproduction |
| cell theory | all living things made of cells |
| Robert Hooke | Discovered cells using cork |
| Anton Leeuwenhoek | Used simple microscope to see microorganisms |
| Robert Brown | Discovered the nucleus using orchid cells. |
| Matthias Schleiden | Plants are made of cells |
| Theodor Schwann | Animals are made of cells |
| Rudolph Virchow | All cells come from cells |
| Janet Plowe | Cell membrane is a physical barrier |
| Lynn Margulis | Certain organelles were once free-living cells |
