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33 Cards in this Set
- Front
- Back
Aerobes |
Bacteria requires O2 |
|
Anaerobes |
Do not require and may be Killed in presence of O2 |
|
Facultative |
Can grow with and without O2 |
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Sodium thioglycollate |
Compound which removes gaseous O2 |
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Resazurin |
An oxygen indicator Colorless but pink/lavender in its oxidized form |
|
anaerobic agar |
Brewer's |
|
UV light |
Lethal to living cells (DNA) |
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Isotonic |
Same concentration in and out of cell no net movement |
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Hypertonic |
Higher solute concentration outside of the cell Net movement of water is out of the cell |
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Hypotonic |
Lower solute concentration outside of the cell Water enters the cell |
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Lyse |
Water enters cell and burst in hypotonic environment |
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Crenate |
Water leaves cell and shrivals in hypertonic environment |
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Physiological salt |
.9% sodium same as blood |
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Alkalophile |
Base loving |
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Acidophile |
Acid loving |
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Endospore |
Allows the organism to survive in harsh environments |
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Staph (heat) |
Performs better than E. Coli Gram positive |
|
E.coli (heat) |
Poor against Gram negative |
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Bacillus (heat) |
Endospore protects |
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Pellicles |
Surface growth in broth Caps off growth |
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Turbidities |
Cloudiness in broth |
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Thermal death time TDT |
Time required to kill a suspension of microbes |
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Thermal death point TDP |
Temperature required to kill a suspension of microbes in 10 min |
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Pseudomonas fluorescens Prefers temp |
Some what of a psychrophile |
|
Bacillus stearothermophilus Prefers temp |
Thermophile |
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Molds tolerate |
More wider temp ranges (Cooler) |
|
Molds in exp 7 |
Aspergillus Niger Saccharomyces cerevisiae |
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Anaerobic broth |
Fluid Thioglycollate broth |
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Bacillus subtilis survives longer in uv light then staph |
Because it has an endospore |
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Staph is a (prefered environment) |
Halophilic |
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Bacteria is odd if grows in hypertonic |
Osmophile |
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Osmophile types |
Saccharophiles (sugar environment) Halophiles (salt envitonment) |
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Stict anaerobe exp 12 |
Clostridium sporogenes |