In fermentation ............. ATP produce per glucose molecule :
Correct answer: A. 2
- A. 2
- B. 4
- C. 6
- D. 36Health
Explanation
Fermentation follows glycolysis, and glycolysis produces 4 ATP but uses 2 ATP, giving a net gain of 4 - 2 = 2 ATP per glucose molecule. The likely distractor is 4 ATP, which is the gross production before subtracting the ATP investment.
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About Cellular Respiration
Cellular respiration releases energy from glucose through glycolysis, the link reaction, the Krebs cycle and the electron transport chain, producing ATP. The pathway differs in oxygen availability: aerobic respiration uses oxygen and yields more ATP, while anaerobic respiration produces much less ATP and forms lactic acid in muscles or ethanol and carbon dioxide in yeast.
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