CELL RESPIRATION
GLYCOLYSIS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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32
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34
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36
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38
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Detailed explanation-1: -In aerobic respiration, one glucose molecule results in a net ATP gain of 38 ATP.
Detailed explanation-2: -Reason: There is net gain of 18 ATP molecules during aerobic respiration of one molecule of glucose.
Detailed explanation-3: -So, in aerobic respiration, a total of 38 molecules of ATP are created, with 2 ATP molecules formed outside the mitochondria. Electron transfer from glycolysis’ NADH and FADH2 molecules, pyruvate transformation, and the Krebs cycle generates up to 32 additional ATP molecules.
Detailed explanation-4: -In eukaryotic cells, the theoretical maximum yield of ATP generated per glucose is 36 to 38, depending on how the 2 NADH generated in the cytoplasm during glycolysis enter the mitochondria and whether the resulting yield is 2 or 3 ATP per NADH.
Detailed explanation-5: -Electron transport from the molecules of NADH and FADH2 made from glycolysis, the transformation of pyruvate, and the Krebs cycle creates as many as 32 more ATP molecules. Therefore, a total of up to 36 molecules of ATP can be made from just one molecule of glucose in the process of cellular respiration.