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7 Cards in this Set
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- Back
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What does a durham tube do?
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collects gas in the tube so we can see if we have made an acidic condition
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What is fermentation?
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the incomplete breakdown of a carbohydrate
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What are the two end products of fermentation?
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Acid and a gas (usually CO2)
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What is the media used for sugar fermentation?
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Phenyl red (sugar) broth
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What pH indicator is used for the sugar fermentation test?
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Red in basic conditions (8-14)
Yellow in acidic conditions (1-6) 7 is neutral |
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What does a positive result look like and what does it mean?
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positive is a yellow color with or without bubble
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What does a negative result look like for sugar test and what does it mean?
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any other color besides yellow
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