Std. 9 Vocab.
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17 terms
Terms | Definitions |
|---|---|
 antibiotics | medicines used to kill bacteria and other microorganisms |
| bacillus | rod shaped bacteria |
| bacteriophage | a virus that infects bacteria |
| binary fission | A form of asexual reproduction that produces identical offspring |
| capsid | outer protein coat of a virus |
| coccus | any spherical or nearly spherical bacteria |
| conjugations | genetic material is transferred b/t bacterial cells |
| endospore | a small asexual spore that develops inside the cell of some bacteria and algae |
| lysogenic infection | process by which a virus embeds its DNA into the DNA of the host cell and is replicated along with the host cell's DNA |
| lytic infection | process in which a virus enters a cell, makes a copy of itself, and causes the cell to burst |
| obligate aerobe | organism that REQUIRES A CONSTANT SUPPLY OF OXYGEN in order to live |
| obligate anerobe | bacteria that are kiled by oxygen and can survive only in oxygen-free environments. |
| pathogen | any disease-producing agent (especially a virus or bacterium or other microorganism) |
| protist | free-living or colonial organisms with diverse nutritional and reproductive modes |
| spirillum | any flagellated aerobic bacteria having a spirally twisted rodlike form |
| vaccine | substance prepared from killed or weakened pathogens and introduced into a body to produce immunity |
| virus | an extremely small organism which causes disease in humans, animals and plants |
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