| Term | Definition |
| plasma membrane | a thin membrane around the cytoplasm of a cell. selects what goes in/out of the cell |
| cytosol | Semi-fluid that holds all cell structures in place |
| vacuole | storage structures for food, water, minerals, waste |
| mitochondria | "power house", the organelles in which nutrients are converted to energy |
| ribosomes | site of protein synthesis |
| Endoplasmic Reticulum | Membrane bound structure, modifies and packages protein |
| Nucleolus | makes ribosomes |
| lysosomes | An organelle containing digestive enzymes |
| Golgi Bodies | package and move proteins outside the cell |
| Centrioles | (only animal) Helps in cell division |
| Cell Wall | (plant only) Provide Support |
| Chloroplast | carries out photosynthesis |