| A | B |
|---|
| composite cell | one that includes many known cell structures |
| cytoplasm | mass of fluid that surrounds the nucleus |
| endoplasmic reticulum | (ER) |
| golgi apparatus | "packaging" |
| mitochondria | elongated fluid-filled sacs |
| lysosomes | tiny membranous sacs |
| osmosis | special case of diffusion |
| filtration | molecules are forced through membranes |
| life cycle | changes a cell undergoes |
| myofibrils | help cells shorten or contract |
| nucleus | located in center of cell |
| nuclear envelope | allows substances to move between the nucleus and the cytoplasm |
| cilia | wavelike motion |
| microfilaments | process found within cytoplasm |
| cell membrane | simple envelope surrounding the cellular contents |
