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The yeast used in brewing alcohol beverage beer can break down glucose either aerobically or anaerobically using alcohol fermentation. Explain why beer is brewed under anaerobic conditions?
Accepted Answer
Beer is brewed under anaerobic conditions because the primary product of anaerobic fermentation by yeast is ethanol (alcohol). Under aerobic conditions, yeast would primarily produce carbon dioxide and water, which are not the desired products for brewing beer. The anaerobic environment prevents yeast from using oxygen and encourages them to produce ethanol through alcoholic fermentation.
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