Viruses and Bacteria
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Created by:
monicabuck on April 8, 2011
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22 terms
Terms | Definitions |
|---|---|
 virus | a tiny, nonliving particle that invades and then reproduces inside a living cell |
| host | an organism that provides a source of energy or a suitable environment for a virus or another organism to live |
| parasite | an organism that lives on or in a host and causes harm to the host |
| bacteriophage | a virus that infects bacteria |
| bacteria | single-celled organisms that lack a nucleus; prokaryotes |
| cytoplasm | the region of a cell located inside the cell membrane (in prokaryotes) or between the cell membrane and nucleus (in eukaryotes); contains a gel-like material and cell structures |
| ribosome | a tiny structure located in the cytoplasm of a cell where proteins are produced |
| flagellum | a long, whiplike structure that helps a cell to move |
| respiration | the process of breaking down food to release its energy |
| binary fission | a form of asexual reproduction in which one cell divides to form two identical cells |
| asexual reproduction | a reproductive process that involves only one parent and produces offspring that are identical to the parent |
| sexual reproduction | a reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents |
| conjugation | the process in which a unicellular organism transfers some of its genetic material to another unicellular organism |
| endospore | a small, rounded, thick-walled, resting cell that forms inside a bacterial cell |
| pasteurization | a process of heating food to a temperature that is high enough to kill most harmful bacteria without changing the taste of the food |
| decomposer | an organism that breaks down chemicals from dead organisms and returns important materials to the soil and water |
| infectious disease | an illness that can pass from one organism to another |
| toxin | a poison that can harm an organism |
| antibiotic resistance | the ability of bacteria to withstand the effects of an antibiotic |
| antibiotic | a chemical that can kill bacteria without harming a person's cells |
| vaccine | a substance introduced into the body to stimulate the production of chemicals that destroy specific disease-causing viruses and organisms |
| "Were not ten cleansed? Where are the nine?" | Luke 17:17 |
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