Term
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Definition
| Contains various nutrients that allow the investigator to distinguish one bacterium from another by how they metabolize or change media |
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Term
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Definition
| Contains chemicals that prevent the growth of unwanted bacteria without inhibiting the growth of the desired organism |
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Term
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Definition
| Contains a single kind of microbe. Is required to study growth characteristics, pathoenicity, metabolism, and antibiotic susceptibility |
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Term
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Definition
| Contains chemicals that enhance the growth of desired bacteria |
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Term
| Why is it best to incubate plates in an inverted position: |
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Definition
| To prevent condensation build up on the agar |
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Term
| Using urea agar, bacteria possessing urease will produce ammonia, raising the pH of the medium, turning the indicator: |
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Definition
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Term
| Peptone iron agar is used to detect the production of |
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Definition
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Term
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Definition
| Chemical reactions that release energy in the presence of oxygen |
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Term
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Definition
| Chemical reaction that release energy with or without the presence of oxygen |
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Term
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Definition
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Term
| Name the characteristics that can be determined from using MIO agar: |
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Definition
1) Motility
2) Indole
3) Ornithine |
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Term
| The most lethal UV wavelengths are: |
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Definition
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Term
| Organisms that grow in the range if 45-65 degrees Celsius are called: |
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Definition
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Term
| Example of dry heat and moist heat: |
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Definition
Dry heat - using an oven Moist heat - Pasteurization |
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Term
| what is the most effective method of moist heat sterilization: |
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Definition
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Term
| What diseases are constantly present in the population: |
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Definition
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Term
| What is transient microbiota: |
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Definition
| Pathogens that don't persist normally on a host. Occupy host for a limited time |
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Term
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Definition
| Transmission from microorganisms that are carried on liquid drops from a cough or sneeze |
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Term
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Definition
| Transmission from insects that carry a pathogen on their feet and may transfer the pathogen to a person's food |
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Term
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Definition
| Transmission of a disease by an arthropod's bite |
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Term
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Definition
| An enzyme that clots the fibrin in blood and is pathogenic. |
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Term
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Definition
| Incomplete hemolysis, producing methemoglobin and a green, cloudy zone around the colony |
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Term
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Definition
| Complete hemolysis, giving a clear zone with a clean edge around the colony |
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Term
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Definition
| No hemolysis, and no change in the blood agar around the colony |
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Term
| Despite the presence of potentially pathogenic bacteria in the upper respiratory system, the rate of infection is minimized by: |
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Definition
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Term
| What is used to culture fastidious bacteria |
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Definition
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Term
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Definition
| Aerobic or facultatively anaerobic, gram negative rods, and usually non pathogenic |
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Term
| What do EMB agar dyes inhibit: |
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Definition
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Term
| The standard plate count is used: |
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Definition
| To determine the total number of viable bacteria in a food sample |
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Term
| What is the purpose of an indicator organism: |
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Definition
| Used to detect fecal contamination of water |
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Definition
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