| A | B |
| cell wall | Fairly rigid structure located outside the plasma membrane of plant cells and some bacteria. |
| chromatin | Unpacked DNA. |
| nucleolus | Organelle inside the nucleus that makes ribosomes. |
| ribosome | Sites of protein assembly in a cell. |
| cytoplasm | Clear, gelatinous fluid inside a cell. |
| endoplasmic reticulum | Organelle where many of the cells chemical reactions take place. |
| Golgi apparatus | Flattened membranes that modify and package cell products. |
| vacuole | Temporary storage place inside cells. |
| lysosome | Organelle that contains digestive enzymes. |
| chloroplast | Organelles that capture sunlight and produce energy to store for a later time. |
| plastid | Plant organelle used for storage. |
| chlorophyll | Green pigment that captures light energy. |
| mitochondria | Organelles that transform energy for the cell (make ATP). |
| cytoskeleton | Structure that supports and gives shape to a cell. |
| microtubule | Thin, hollow cylinders made of protein. |
| microfilament | Thin, solid protein fibers of the cytoskeleton. |
| cilia | Short, numerous, hair-like projections that move in a wave-like motion. |
| flagella | Longer, whip-like projections from cells. |