chapter 7 science
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Created by:
carolhasty on November 7, 2010
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19 terms
Terms | Definitions |
|---|---|
 flagella | long, thin, whiplike structure of some protists that helps them move through moist or wet surroundings |
| fission | simplest form of asexual reproduction in which two new cells are produced with genetic material identical to each other and identical to the previous cells |
| aerobe | any organism that uses oxygen for respiration |
| anaerobe | any organism that is able to live without oxygen |
| cocci | a sphere-shaped bacteria |
| bacilli | rod-shaped bacteria |
| spirilla | a spiral-shaped bacteria |
| eubacteria | the larger of the two kingdoms of bacteria |
| archaebacteria | a kingdom of bacteria, contains certain kinds of bacteria that often are found in extreme conditions |
| cyanobacteria | one important group of producer eubacteria |
| mycoplasma pneumoniae | one type of eubacteria, causes a type of pneumonia in humans |
| antibiotic | chemicals produced by some bacteria that are used to limit the growth of other bacteria |
| saprophyte | an organism that feeds on dead organic matter especially a fungus or bacterium |
| nitrogen-fixing bacteria | bacteria that convert nitrogen in the air into forms that can be used by plants and animals |
| pathogen | any disease-producing agent (especially a virus or bacterium or other microorganism) |
| toxin | a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species |
| endospore | a small asexual spore that develops inside the cell of some bacteria and algae |
| vaccine | immunogen consisting of a suspension of weakened or dead pathogenic cells injected in order to stimulate the production of antibodies |
| bioremedition | helps clean up or remove enviromental pollutants |
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