BIOCHEMISTRY
ENZYMES AND METABOLISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -Six protons are pumped for every FADH2, so 1 FADH2 yields 1.5 (6/4) ATP. Cellular respiration produces a maximum of 10 NADH and 2 FADH2 per glucose molecule. Since a single NADH produces 2.5 ATP and a single FADH2 produces 1.5 ATP, it follows that 25 ATP + 3 ATP are produced by oxidative phosphorylation .
Detailed explanation-2: -A total of 10 NADH2 and 2 FADH2 molecules are formed in aerobic respiration.
Detailed explanation-3: -2.5 ATP/NADH and 1.5 ATP/FADH2 are produced in the electron transport chain. Some resources will say 3 ATP/NADH and 2 ATP/FADH2, but these values are generally less accepted now.
Detailed explanation-4: -Hence, during the complete oxidation of one molecule of glucose, 38 molecules of ATP are produced.
Detailed explanation-5: -These molecules are capable of further producing ATP molecules by transfer of electrons and with the enzyme ATP synthase. One NADH molecule produces 3 ATP molecules. Whereas one FADH2 molecule produces 2 ATP molecules.