| A | B |
| cell membrane | A thin structure that surrounds the cell; supports the cell; protects the cell; and controls what enters and leaves the cell. |
| cell wall | A stiff structure that is found only in plant cells; giving the plant support and protection, allowing it to grow upright. |
| cellulose | A complex compound that partly makes up the cell wall. |
| nucleus | The control center of a cell's activities. |
| cytoplasm | All the living material in a cell except the nucleus and other small organelles. |
| organelles | Small parts inside the cell that carry out life processes such as releasing energy, making proteins, and storing food and water. |
| mitochondria | Power house of the cell; provides energy and releases the energy stored in food. |
| ribosomes | Tiny round protein factories attached to the ER . |
| Endoplasmic Reticulum | A network of tubes and canals that runs throughout the cytoplasm transporting materials from place to place. |
| Golgi bodies | The center of manufacturing and shipping within the cell. |
| lysosomes | Found primarily in animal cells, these organelles contain chemicals for breaking down large food molecules. |
| vaculoles | Fluid-filled sacs that store water and food and wastes. |
| Chloroplasts | Green oval-shaped organelles found in plant cells containing a compound that traps energy from the sun. |
| Chlorophyll | A compound found in chlorophasts that traps energy from the sun and gives the cells its green color |