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A-Level Biology OCR A

Nad Fad Accepts Nadh Fadh Compare Takes Part

NAD participates in all stages of respiration, while FAD only in the Krebs cycle; NAD accepts one hydrogen, FAD accepts two; NADH enters the electron transport chain earlier than FADH2, yielding more ATP.

NAD participates in all stages of respiration, while FAD only in the Krebs cycle; NAD accepts one hydrogen, FAD accepts two; NADH enters the electron transport chain earlier than FADH2, yielding more ATP.

Front Compare NAD and FAD.
Back FAD vs NAD:
  • NAD takes part in all stages of respiration, FAD only accepts hydrogen in Krebs
  • NAD accepts one hydrogen, FAD accepts two
  • NADH oxidised at start of electron transport chain, FADH2 oxidised further along chain
  • NADH results in synthesis of 3 ATP, FADH2 results in 2 ATP

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