LABORATORY REVIEW
CELL RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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2 molecules of ATP
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4 molecules of ATP
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30-32 molecules of ATP
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6 molecules of ATP
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26-28 molecules of ATP
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Detailed explanation-1: -It is a total of 38 ATP produced.
Detailed explanation-2: -Oxidative phosphorylation produces 24–28 ATP molecules from the Kreb’s cycle from one molecule of glucose converted into pyruvate.
Detailed explanation-3: -In aerobic respiration, the full oxidation of one glucose molecule can theoretically yield 38 ATP molecules.
Detailed explanation-4: -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-5: -Glycolysis occurs in both aerobic and anaerobic states. In aerobic conditions, pyruvate enters the citric acid cycle and undergoes oxidative phosphorylation leading to the net production of 32 ATP molecules.