| A | B |
| nucleus | control center of the cell |
| mitochondria | uses energy from food to provide the cell with power |
| ribosome | makes proteins |
| cell membrane | surrounds and protects the cell |
| smooth ER | synthesizes (produces) lipids |
| rough ER | synthesizes (produces) proteins |
| nucleolus | small dense region where the assembly of ribosomes begins |
| golgi apparatus (body) | packages proteins before they are shipped out of the cell |
| cytoplasm | portion of the cell outside the nucleus |
| organelle | structures found in a cell' "specialized organs" |
| prokaryote | cell without a nucleus |
| eukaryote | cell with a nucleus |