A+P chapter 3 - cells and tissues
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Created by:
meecaveman on February 5, 2010
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35 terms
Sundanese | English |
|---|---|
| cells |  used to describe the samllest unit or the building blocks of all living things |
| nucleus | headquarters of cell |
| nuclear pores | made by joining of the nuclear membrane layers |
| nuclioli | in nucleus, site where ribosomes are assembled |
| ribosomes | protien syntheses |
| chromatin | dormant DNA mexed with protien |
| chromosomes | condensed chromatin, used with cell dividing |
| plasma membrane | barrier around the cell |
| microvilli | "little hairs" that increase the surface are of the cell so that it may absorb liquid faster |
| tight junction | impermeable junction that binds cell together and prevents things from passing through |
| desmosones | prevents cells from ripping apart under stress |
| gap junction | mostly for communication (chemical molecules can pass through |
| connexons | hollow cylinders that go through abutting membranes |
| cytoplasm | cellular material outside the nucleus and inside the plasma membrane |
| cytosol | fluid that suspends elements in the cell |
| organnelles | metabolic machinery of cell |
| inclusions | stored nutrients or cell products |
| mitochondria | "powerhouse" breakdown foods, release energy as atp |
| ribosomes | synthesize protiens |
| endoplasmic reticulum | ships substances from one part of the cell to the other |
| rough ER | "factory", all of the building materials of cellular membranes formed either in or on it |
| transport vessicles | come off rough ER and transports materials in the rough ER |
| smooth ER | lipid metabolism, detoxification of drugs and pesticides |
| golgi apparatus | "customazation shop". modifies and packages protiens in specific ways depending on where they are going |
| secretory vessels | "letter bombs" come from golgi apparatus, go to plasma membrane, fuse with it, expell contents. also goes to plasma membrane to stay, and to other cellular membranes |
| lysosomes | "clean up crew" bags that contain digestive enzymes for digestion of worn out or nonusable cell structures and other foriegn substances |
| peroxisomes | "hydrogen peroxide" detoxifies poisons, disarms dangerous free radicals |
| free radicals | highly reactive chemicals with unpaired electrons that can mess up protiens and nucliec acids |
| cytoskeleton | "bones and musscles" protien structures that extend throguhout the cytoplasm. determines cell shape, supports organelles, provides machinery needed for intracellular transport and various types of cellular movement |
| intermediate filaments | help desmosones |
| microfilaments | involved in cell motility and changes in cell shape |
| microtubules | determine overall shape of cell and distribute oraganelles |
| centrioles | made of fine microtubules, form mitotic spindle |
| cilia | short hairlike projections on the outside of the cell that move substances along the surface |
| flagella | long tail that moves cell, only on sperms |
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