| A | B |
|---|
| microscope | tool that makes things look larger than they really are |
| ribosome | small, round structures that make proteins |
| cell wall | thick outer layer that surrounds the membranes of plants and some simple organisms |
| organelles | small structures in cytoplasm that do special jobs |
| cell membrane | thin structure that surrounds a cell |
| vacuole | space in cytoplasm that stores substances |
| osmosis | movement of water through a membrane |
| mitosis | division of the nucleus |
| nucleus | control center of a cell |
| lens | piece of curved glass or other clear material that causes light rays to come together or spread apart as they pass through |
| cell division | process by which cells reproduce |
| chloroplast | structure in a plant cell that contains chlorophyll |
| cell | basic unit of structure in living things |
| mitochondria | structures that release energy from a cell |
| endoplasmic reticulum | small network of tubes that substances move along |
| nuclear membrane | thin structure that surrounds and protects the nucleus |
| cellulose | forms most of the cell wall of a plant cell |
| cytoplasm | gel-like substance inside the cell where most of the cell's activities take place |
| lysosome | small, round structure that breaks down nutrient molecules and old cell parts |
| Golgi body | organelle that packages and sends materials to other places |
