I keep getting “Fermentation by microbes” questions wrong in Microbes in Human Welfare. What's the trap?
thinking fermentation always needs oxygen.
The usual trap: thinking fermentation always needs oxygen. How to avoid it: fermentation is anaerobic — it happens without oxygen. Go back to the definition — microbes break down sugars anaerobically into useful products — lactic acid (curd), or ethanol and CO₂ (bread, alcohol).
Key point
Fermentation by microbes
Common mistake
thinking fermentation always needs oxygen.
Memory tip
fermentation is anaerobic — it happens without oxygen.
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