| A | B |
|---|
| Cytoskeleton | Shape and organization of cell's contents |
| Centrosome | Organizing center for microtubules |
| Centrioles | Important in mitotic apparatus |
| Cilia | Cover surface of cell; sweep something past cell |
| Flagella | Allow a cell to "swim" through a liquid |
| Free ribosome | Synthesizes proteins that will be used inside the cell |
| Membrane-bound ribosome | Synthesizes proteins that will be exported from the cell |
| Secretory vesicle | Carries something to the plasma membrane and releases it to the outside |
| Rough ER | Begins the modification of proteins that will leave the cell or become part of the plasma membrane |
| Smooth ER | Enzymes that change glycogen to glucose |
| Golgi complex (apparatus) | Completes modification and packaging of proteins that will leave the cell |
| Lysosome | Contains about 60 different enzymes that break down organic molecules |
| Peroxisome | Fatty acid & amino acid metabolism; detoxification |
| Proteasome | Removal of proteins |
| Mitochondrion | ATP production |
| Nucleus | Control center |
| Nucleolus | Synthesis of rRNA |
| Nuclear envelope | Regulates passage in and out of the nucleus |
| Transport vesicle | Carries a partly-processed protein from ER to Golgi |
