| Term | Definition |
|---|
| mitochondria | power plants of cell -- provides ATP supply |
| ribosomes | sites of protein synthesis |
| rough ER | cell's membrane factory -- produces transport vesicles |
| smooth ER | site of lipid and steroid synthesis, lipid metabolism, drug detox |
| Golgi apparatus | traffic director for cellular proteins -- produces lysosomes and secretory vesicles |
| lysosomes | sites of intracellular digestion |
| peroxisomes | enzymes detoxify toxic substances -- oxidases and catalases |
| cytoskeleton | elaborate network of rods running through cytosol -- support cell structures and generate movements |
| microtubules | largest -- spherical tubulins -- determine overall shape of cell and distribution of cellular organelles |
| microfilaments | thinnest -- strands of actin -- muscle contraction and other intracellular movement |
| terminal web | dense cross-linked network of microfilaments -- strengthens cell surface and resists compression |
| intermediate filaments | medium -- tough insoluble protein fibers -- stable elements -- resist mechanical forces acting on cell |
| centrosome | region near nucleus -- one end of microtubules are anchored -- microtubule organizing center |
| centrioles | organize the spindle during mitosis, also form bases of cilia and flagella -- pinwheel array of nine triplets of microtubules |
| cilia | short cell-surface projections -- move substances across cell surface |
| flagella | long projections formed by centrioles -- propel cell itself |
| microvilli | extensions of plasma membrane that increase surface area for absorption |
| inclusions | storage for nutrients, waste and cell products |
| cytoplasm | cell-forming material -- between plasma membrane and nucleus |
| cytosol | fluid in which cytoplasmic elements are suspended -- water, proteins, salts, sugars |
| organelles | little organs -- metabolic machinery of cell |
| endomembrane system | mitochondria, lysosomes, ER, Golgi apparatus, nuclear membrane |
| cis face | convex receiving side of Golgi apparatus |
| trans face | concave shipping side of Golgi apparatus |
| tubulins | spherical protein subunits that form hollow tubes |
Combine with other sets
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