PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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2
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4
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6
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8
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Detailed explanation-1: -Two molecules of acetyl-CoA are produced from each glucose molecule so two turns of the Krebs cycle are required which yields four CO2, six NADH, two FADH2 and two ATPs.
Detailed explanation-2: -Kreb’s cycle is the second phase of aerobic respiration during which acetyl CoA condenses with OAA to form citrate which undergoes oxidative decarboxylation forming 3 molecules of NADH2 and one molecule FADH2.
Detailed explanation-3: -It also produces two carbon dioxide molecules per turn (one CO2 is produced when 1 of the 4 carbons in the citric acid molecule is oxidized). The cycle produces 3 hydrogen ions (H+) during each turn. So we can say that the net of each Krebs cycle products are: 3 NADH molecules.
Detailed explanation-4: -Products of the Citric Acid Cycle Each turn of the cycle forms three NADH molecules and one FADH2 molecule. These carriers will connect with the last portion of aerobic respiration to produce ATP molecules.
Detailed explanation-5: -During the Krebs cycle, energy stored in pyruvate is transferred to NADH and FADH2, and some ATP is produced.