CELL RESPIRATION
THE KREBS CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Glucose and ATP
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H2O and CO2
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CO2, acetyl-CoA, and NADH
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O2, ATP and NADH
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Detailed explanation-1: -In the presence of oxygen, the next stage after glycolysis is oxidative phosphorylation, which feeds pyruvate to the Krebs Cycle and feeds the hydrogen released from glycolysis to the electron transport chain to produce more ATP (up to 38 molecules of ATP are produced in this process).
Detailed explanation-2: -The transition reaction connects glycolysis to the citric acid (Krebs) cycle. The transition reaction converts the two molecules of the 3-carbon pyruvate from glycolysis (and other pathways) into two molecules of the 2-carbon molecule acetyl Coenzyme A (acetyl-CoA) and 2 molecules of carbon dioxide.
Detailed explanation-3: -This process, called lipolysis, takes place in the cytoplasm. The resulting fatty acids are oxidized by -oxidation into acetyl CoA, which is used by the Krebs cycle.
Detailed explanation-4: -The process of glycolysis, conversion of pyruvate and citric acid cycle produces 4 ATP, 10 NADH, and 2 FADH2 per molecule of glucose.