| A | B |
| Cell Wall | A rigidl layer of nonliving material that surrounds the cells of plants and some other organisms |
| Cell Membrane | This structure is found just inside the cell wall. In other cells this structure forms the outside boundary. |
| Nucleus | This structure is the cell's control center |
| Nuclear Membrane | This structure surrounds the nucleus and protects the nucleus |
| Chromosomes | These structures help transfer genetic material from one cell to the next. |
| Cytoplasm | The region between the nucleus and the cell membrane |
| Organelles | Tiny cell structures that carry out specific functions within the cell |
| Mitochondria | The powerhouses of the cell because they produce most of the energy for the cell. |
| Lysomes | These small cell organelles contain chemicals that function to break down food particles and worn out cell parts |
| Ribosomes | These small structures function as factories to produce proteins |
| Golgi Body | Receive materials from the endoplasmic reticulum and send them to other parts of the cell. They also release materials outside the cell. |
| Endoplasmic Reticulum | The network of passageways functions to carry materials from one part of the cell to the other. |
| Vacuole | Some animal cells have these organelles that store food water, waste and other materials |
| Chloroplast | These organelles are not found in animal cells. They capture energy from the sun and use it to produce food for the cell. |
| Bacteria | This type of cell does not contain a nucleus. These cells are about ten times smaller than a human skin cell. |
| Prokaryotes | A classification for cells that do not contain a nucleus. |
| Eukaryotes | A classification of cells that does contain a nucleus and contains many other cell organelles, |