FOOD PROCESSING AND PRESERVATION
FERMENTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ATP and NADH
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ATP and NAD+
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FADH2 and NADH
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NAD+ and ATP
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Detailed explanation-1: -NADH and FADH2 made in the citric acid cycle (in the mitochondrial matrix) deposit their electrons into the electron transport chain at complexes I and II, respectively. This step regenerates NAD+ and FAD (the oxidized carriers) for use in the citric acid cycle.
Detailed explanation-2: -The Electron Transport Chain The ten NADH that enter the electron transport originate from each of the earlier processes of respiration: two from glycolysis, two from the transformation of pyruvate into acetyl-CoA, and six from the citric acid cycle. The two FADH2 originate in the citric acid cycle.
Detailed explanation-3: -NADH is the electron donor for the electron transport chain. The first complex to accept the donated electrons is NADH dehydrogenase.
Detailed explanation-4: -Electrons carried by NADH + H+ and FADH2 are transferred to oxygen via a series of electron carriers, and ATPs are formed. Three ATPs are formed from each NADH + H+, and two ATPs are formed for each FADH2 in eukaryotes.