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The air around you - anywhere on earth - has lots of floating wild yeasts in it. A big jar of fruit juice left to the open air for a few days will start to ferment. Fermentation is the process where yeasts eat sugars, and, as waste product, create carbon dioxide - and alcohol. That is fermentation.

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12y ago
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15y ago

they take glucose (sugar), break it in half (glycolysis), and use it to make ethanol (poison in beer) and carbon dioxide (CO2)

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11y ago

Fermentation occurs in situations where there are low oxygen levels, preventing oxydation.

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11y ago

Because it can

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12y ago

to replenish NAD+

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Q: Why do organism undergo fermentation?
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