| A | B |
|---|
| cell | basic unit of life |
| cell theory | All living things are composed of cells; cells are the basic units of structure and function in living things; new cells are produced from existing cells. |
| nucleus | large membrane enclosed structure that contains the cell's genetic material in the form of DNA; part of the cell that controls many of the activities of the cell. |
| eukaryote | cell that has a nucleus |
| prokaryote | cell that does not have a nucleus |
| Robert Hooke | Englishman who chose the name "cell" after looking at cork through a microscope. |
| Anton van Leeuwenhoek | Dutchman who first saw tiny living organisms in pond water through a microscope. |
| electron microscope | can see things 1000 times smaller than what can be seen through a light microscope |
