| A | B |
| cytoplasm | jelly-like substance inside a cell |
| Hooke | discovered cells while looking a tree bark |
| cytoskeleton | provides a cell with shape, support, and strength. |
| endoplasmic reticulum | assembles molecules |
| ribosomes | where proteins are made |
| golgi | packages the molecules made in the ER |
| vesicle | transports the substances in a cell |
| lysosome | digests old organelles |
| mitochondria | where energy is made |
| nucleus | controls the cell's activities |
| eukaryote | a cell with a nucleus and membrane-bound organelles |
| prokaryote | a cell without a nucleus and membrane-bound organelles |
| organelle | a small structure within a cell that has a specialized function |
| diaphragm | adjusts the amount of light on a microscope |
| nosepiece | this is where the objectives on a microscope are located |
| coarse adjustment | moves the stage up and down |
| stage clips | holds a microscope slide in place |
| scanning objective | the objective used to locate a specimen on a microscope slide |
| Leeuwenhoek | invented a simple light microscope in the 1600s |
| cell membrane | surrounds the cell; allows some materials to exit or enter the cell. |