Biology / Unit 3 Bio 0562 short lesson, about 20 seconds
Lactic Acid Fermentation
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The idea
Lactic acid fermentation reduces pyruvate directly to lactate, regenerating NAD+ without releasing any carbon dioxide.
In practice
Bacteria fermenting milk sugar into lactate, rather than any animal cell, are what turn milk into yogurt.
Where people slip
Lactic acid fermentation releases no carbon dioxide and yields no ATP beyond glycolysis's own — students conflate it with alcohol fermentation's gas release.
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