Biology / Unit 3 Bio 0565 short lesson, about 20 seconds
Alcohol Fermentation
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The idea
Alcohol fermentation converts pyruvate to ethanol in two steps, releasing carbon dioxide first and then regenerating NAD+ as acetaldehyde is reduced.
In practice
Yeast fermenting grape sugars produces both the ethanol found in wine and the carbon dioxide that pressurizes a sealed fermentation tank.
Where people slip
Alcohol fermentation releases carbon dioxide as a byproduct; lactic acid fermentation, per Bio 0562, does not.
Your place on the trail
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Builds on
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