| Term | Definition |
|---|
| plasma membrane | prevents escape of cell contents, regulates exchange of materials between cytoplasm and extracellular fluid, involved in intercellular communications |
| microvilli | short hairlike processes or scattered bumps on cell surface..function is to increase absorptive surface area and some sensory roles(hearing,euilibrium, taste) |
| cilia | long hairlike projections of apical celll surface:axoneme with 9+2 array of microtubules..function is to move substances along cell surface a some sensory roles- hearing , equilibrium, smell,vision |
| nucleus | largest organelle in most cells , surrounded by double unit membrane with nuclear pores,, function is genetic control center of the cell and directs protein syntheses |
| rough ER | extensive sheets of paralles unit membranes w ribosomes on outer surface...function protein synthesis and manufacture of cellular menbranes |
| smooth ER | branching network of tubules ..no ribosomes...function lipid synthesis, detoxification, calcium storage |
| ribosomes | small dark granules free in cytosol or on surface of rough ER... function is interpret the genetic cole and synthesize polypeptides |
| golgi complex | usually near nucleus ...function is receives and modifies newly synthesizeed polypeptides, synthesizes carbohydrates, adds carbohdrates to glycoproteins , packages cell products into golgi vesicles |
| golgi vesicles | round to irregular sacs near golgi complex usually with light, featureless contents...become sectetory vesicles and carry cell products to apical surface for exocytosis or become lysosomes |
| lysosomes | round to oval sacs w single unit membrane often dark featureless interior but sometimes w protein layers or crystals...contain enzymes for intracellular digestion , autophagy, programmed cell death and glucose mobilization |
| mitochondria | round rod shaped bean shaped w double unit membrane and cristae...atp synthesis |
| centrioles | short cylindrical bodies composed of a circle of 9 triplets of micotubules,,, form mitotic spindle during cell division,, unpaited ones form basal bodies of cilia and flagella |
| centrosome | clear area near nucleus containing a pair of centrioles...organizing center for formation of microtubules of cytoskeleton and miototic spindle |
| miccrofilaments | thin protein filamets often in parallel bundles or dense networks in cytoplasm....support microvilli..involved in muscle contraction and other cellmotility, endocytosis and cell division |
| microtubules | hollow protein clinders.. form axonemes of cilia and flagella m centrioles , basal bodies and mitotic spindles,, enable motility of cell parts.. direct organelles and macromolecules th their destinations w/i a cell |
| inclusions | storage products or other products of cellular metabolism or foreign matter retained in cytoplasm |
Combine with other sets
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