After oxidative phosphorylation, NADH generates 2.5 ATP on average compared to 1

Question

After oxidative phosphorylation, NADH generates 2.5 ATP on average compared to 1.5 ATP generated from FADH2 on average. Why? A. Because FADH2 carries two hydrogen atoms, while NADH carries only one B. Because NADH has to cross from the matrix to the inter-membrane space, while FADH2 does not C. Because oxygen can accept more electrons from NADH molecules than FADH2 D. Because NADH releases its high energy electrons to complex II, while FADH2 releases its high energy electrons to complex I E. None of the above are correct.

Explanation / Answer

OOXIDATIVE PHASPHORYLATION - It is the metabolic pathway in which cell use enzyme to oxidize nutrients to get energy whichis usedto produce ATP. In most eukaryotes oxidative phosphorylation takes place in Mitochondria.

Afer oxidative phosphorylation NADH generates 2.5 ATP on average compared to 1.5 ATP generated from FADH2 on average because -

answer- D) because NADH release its high energy electron s to complex ll , while FADH2 release s its high energy electron to complex l.

NADH releases its high energy electrons to complex ll further it passes to complex lll and complex lV causes energy to pass to pump more proton across the membrane creating more gradient because NADH stared from lower to higher complex it has released more ATP while FADH2 stared from complex ll to cmplex l and less proton have been pumped and released 1.5 ATP average.

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