| Term | Definition |
| cytoplasm | jellylike fluid that holds organelles in place |
| mitochondria | creates energy for the cell (ATP) during respiration |
| golgi body | packages and ships materials throughout the cell |
| nucleus | control center of the cell -- contains genetic material |
| nuclear membrane | controls what goes in and out of the nucleus |
| cell wall | rigid layer of a plant cell to provide protection and support |
| vacuole | storage area for a cell (often holds food and water) |
| endoplasmic reticulum | "highway" in a cell to transport materials |
| ribosome | creates proteins for the cell |
| chloroplast | organelle in a plant cell that uses the sun's energy to make sugar |
| cell membrane | thin layer that controls what goes in and out of a cell |
| lysosome | organelle that breaks down waste for the cell |
| nucleolus | central region in the nucleus -- makes ribosomes |
| chromatin | string-like state of chromosomes (contains DNA) |