BIOL 210 Lab Exam 1
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Created by:
mandercruso on September 26, 2011
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67 terms
Terms | Definitions |
|---|---|
 1 | BSL level not known to cause disease in healthy individuals |
| 2 | BSL level can cause disease in healthy people, but organisms are easily contained |
| 3 | BSL level can cause severe disease, especially when inhaled |
| 4 | BSL level highly virulent microbes posing extreme risk to humans, especially when inhaled |
| R = 0.61*wavelength/NA | resolution formula |
| active feeding form | define trophozoite |
| inactive form | define cyst |
| photosynthetic | define autotrophic |
| require organic carbon | define heterotrophic |
| yeasts | single-celled fungi |
| molds | when fungi grow as strings of long, filamentous cells |
| hypha | single filament of fungi |
| septate | hypha is separated by walls |
| nonseptate | hypha is continuous |
| dimorphic | capable of growing yeasts or molds |
| sporangiospores | spores of fungi that are contained in saclike container |
| conidia | spores that are not enclosed within a spore-bearing sac but rather form from a special fertile hyphae |
| sterile | free from all living bacteria, microorganisms and their spores |
| pathogen | bacteria, virus, or other microorganism that can cause disease |
| inoculation | vaccine as a precaution to prevent disease |
| loop | inoculate broth using |
| needle | inoculate deep broth using |
| loop or needle | inoculate slant using |
| loop or needle | inoculate agar using |
| pure culture | contains a single kind of organism |
| framework | arm and base of microscope |
| lamp | base of microscope with light source |
| diaphragm | adjustable disc with hole in center, located under the condenser of microscope |
| condenser | beneath the stage of microscope; collects and focuses light on the specimen; keep at highest point |
| stage | platform that holds slide of microscope |
| objective lens | 3 or 4 lens above stage of microscope. 10x, 45x, 100x |
| ocular lens | part of microscope that is closest to the eyes; 10x |
| focus adjustment | 2 circle knobs; large = coarse, small = fine |
| tetrad | 4 cocci cell group |
| sarcina | 8 cocci cell group |
| staphylococcal | irregular cluster of cells |
| negative stain | stains the background dark but leaves the cells clear |
| simple stain | stains the cell dark and leaves the background clear |
| india ink | negative staining uses negative dyes such as |
| crystal violet and safranin | basic (positive) dyes used for simple stains |
| differential stain | allows the discrimination of one cell from another based on differential staining properties |
| crystal violet, iodine, ethyl alcohol, safranin | gram staining steps |
| fixes a dye | purpose of iodine |
| decolorizes | purpose of ethyl alcohol |
| counterstain | purpose of safranin |
| rod | salmonella shape |
| coccus | staphylococcus aureus shape |
| rod | listeria innocua shape |
| rod | bacillus megaterium shape |
| negative | gram reaction salmonella typhimurium |
| positive | gram reaction staphylococcus aureus |
| positive | gram reaction listeria innocua |
| positive | gram reaction bacillus megaterium |
| protozoa, unicellular, pseudopods | amoeba characteristics |
| protozoa, autotrophic, 1 flagellum | euglena characteristics |
| protozoa, heterotrophic, 1 flagellum | Trypanosoma characteristics |
| protozoa, unicellular, heterotrophic, 2 flagella | Trichomonas characteristics |
| protozoa, heterotrophic, unicellular, cilia | Paramecium characteristics |
| protozoa, heterotrophic, unicellular, lack cell wall, non-motile, parasite, malaria | Plasmodium characteristics |
| algae, autotrophic, unicellular, flagellated | Chlamydomonas characteristics |
| fungus, unicellular, heterotrophic, budding, asexual and sexual | yeast characteristics |
| fungus, heterotrophic, aseptate mycelium, sporangiospores, zygospores | Rhizopus characteristics |
| fungus, septate mycelium, conidiospores, ascospores | Aspergillus characteristics |
| fungus, multicellular, heterotrophic, septate mycelium, conidiospores, ascospores | Penicillium characteristics |
| helminth, heterotrophic, multicellular, lack cell wall, flatworm, trematode | Schistosoma characteristics |
| helminth, multicellular, lack cell wall, tapeworm | Taenia characteristics |
| helminth, roundworm, cestode | Trichinella characteristics |
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