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Micro Ch. 5
| Question | Answer |
|---|---|
| precisely known components in a growth medium | defined medium |
| unknown composition in a growth medium | complex medium |
| MacConkey Media selective vs. differential | Selective = gram negative Differential = lactose ferment |
| Manitol Salt Agar selective vs. differential | Selective = halophiles Differential = ferments mannitol |
| Thayer Martin selective | gonorrhea / neisseria |
| stages of exponential growth of bacteria | lag exponential stationary death |
| make their own carbon starting with CO2 | Autotroph --> plants |
| get their carbon from other sources | heterotrophs --> people |
| CHONPS | carbon hydrogen oxygen nitrogen phosphorus sulfur |
| gets energy from light | phototroph |
| gets energy from chemicals | chemotroph |
| gets energy from inorganic chemicals | lithotroph |
| gets energy from organic chemicals | organotrophs |
| psychrophiles | extreme cold temp |
| thermophiles | extreme hot temp |
| obligate aerobes | need oxygen for energy |
| obligate anaerobes | do not need oxygen for energy |
| facultative anaerobes | can do both oxygen and no oxygen |
| any device that can grow bacteria on or in the body | biofilm |
| endospores | clostridium and bacillus |
| dormant and require no nutrition or energy | endospores |