Why does fermentation in muscle cells convert pyruvate to lactate?
Answer and explanation
Correct answer: B. To regenerate NAD so glycolysis continues
- Step 1: Glycolysis needs NAD.
- Step 2: Converting pyruvate to lactate regenerates NAD, keeping a small ATP supply going.
Answer
To regenerate NAD so glycolysis continues.
Why not the others: To make more ATP than aerobic respiration: fermentation makes no extra ATP. To remove oxygen from the cell: oxygen is lacking, not in excess. To convert ATP back into ADP: this is not the purpose.
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