1 NADH molecule gives ___ ATP molecules and 1 FADH2 molecule gives ___ ATP molecules.
A
2,2
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B
3,2
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C
2,3
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D
4,2
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Solution
The correct option is B 3,2 Each NADH gives 3 molecules of ATP and each FADH2gives 2 molecules of ATP. The energy released in the cellular respiration process is expressed in terms of number of ATP molecules released and hence we need these conversion factors.