| A | B |
| Cells | basic unit of structure and function in living things. |
| Organelles | structures that carry out specific functions within a cell. |
| Cell Wall | a rigid layer of nonliving material that surrounds the cells of plants and some other organisms. |
| Cell Membrane | controls what substances come into and out of the cell. |
| Cytoplasm | the region between the cell membrane and the nucleus. |
| Mitochondria | Produce most of the energy the cell needs to carry out its functions. |
| Nucleus | the cells control center, directing all of the cell's activities. |
| Endoplasmic Reticulum | passageways that carry protiens and other materials from one part of the cell to the other. |
| Ribosomes | functions as factories to produce proteins. |
| Vacuole | store food and other materials that are needed by the cell. |
| Lysosome | Contain chemicals that break down large food particles into smaller ones. Found mostly in animal cells. |
| Chloroplasts | In plants (mostly) used to capture energy from the sun to produce food for the cell. |