FADH2 is produced during which step of Krebs cycle?
Correct answer: C. When Succinate is converted into Fumarate
- A. When Isocitrate is converted into alpha - ketoglutarate
- B. When alpha - Ketogluterate is converted into Succinate
- C. When Succinate is converted into Fumarate
- D. When Fumarate is converted into Maltose
Explanation
Succinate converts into fumarate using the enzyme succinate dehydrogenase and [FAD] is reduced to [FADH2] which is a prosthetic group of succinate dehydrogenase.
This question appeared on the NUMS 2015 paper, which you can sit online with every answer explained.
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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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