| A | B |
| cytoskeleton | provides a cell with shape, support, and strength. |
| nuclear pore | openings in the nuclear membrane used for transport |
| ribosomes | where proteins are made |
| golgi complex | packages the molecules made in the ER |
| transport vesicle | transports the substances in a cell |
| lysosome | digests old organelles |
| mitochondria | where ATP (cell fuel) is made |
| nucleus | controls the cell's activities |
| eukaryote | a cell with a nucleus and membrane-bound organelles |
| prokaryote | a cell without a nucleus and membrane-bound organelles |
| organelle | a small structure within a cell that has a specialized function |
| plasma membrane | surrounds the cell; allows some materials to exit or enter the cell. |
| nucleolus | where rRNA is synthesized |
| smooth endoplasmic reticulum | lipid synthesis; detoxification |
| central vacuole | water and nutrient storage in plant cells |
| cytosol | jelly-like substance inside a cell |
| chloroplast | site of photosynthesis |
| cell wall | in plants, provides the cell with support and protection |
| plasmodesmata | permanent communication channels in plant cells |
| gap junction | temporary communication channel between animal cell membranes |
| cilia | hairlike structures on the cell membrane used for movement or "sweeping" |
| flagella | tail-like structure used for movement |
| intermediate filament | holds organelles in place |
| microfilament | used to form pseudopodia |
| microtubule | used to form cilia, flagella, and cell "monorails" |
| nuclear envelope | double membrane surrounding the nucleus |
| rough endoplasmic reticulum | protein processing center |