Sample Questions — Fermentation
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MCQ
Fermentation is a process that takes place under:
✅ Correct Answer: B
Fermentation occurs in absence of oxygen.
MCQ
In alcoholic fermentation, yeast dies at alcohol concentration above:
✅ Correct Answer: C
Yeast is poisoned by alcohol if it exceeds ~13%.
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MCQ
Why is less ATP generated in fermentation compared to aerobic respiration?
✅ Correct Answer: B
Fermentation does not use Krebs cycle or ETS, which are major ATP-yielding pathways.
MCQ
Why is fermentation considered a hazardous process for the organism performing it?
✅ Correct Answer: D
Accumulation of ethanol or lactic acid is harmful to the cells.
MCQ
In muscle cells under limited oxygen, pyruvic acid is converted to:
✅ Correct Answer: A
Anaerobic conditions in muscles lead to lactic acid production.
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