LABORATORY REVIEW
CELL RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Glucose is broken down to pyruvate
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Respiration requiring oxygen occurs in the mitochondria
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Most ATP is produced during glycolysis and the Krebs cycle.
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The Krebs cycle occurs directly after glycolysis
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Detailed explanation-1: -While Krebs’ cycle produces two GTP molecules. These two GTP molecules are therefore turned into two ATP molecules. Electron Transport System generates 32 or 34 ATP molecules and is the cell’s main source of energy. Thus, the electron transport system produces the most ATP in cellular respiration.
Detailed explanation-2: -In the Krebs cycle, two ATP, six NADH +H+, and two FADH2 were produced. A net of four ATPs was produced from glycolysis through the Krebs cycle. More ATP will be produced from reduced coenzymes in the mitochondria during the electron transport chain and oxidative phosphorylation.
Detailed explanation-3: -It occurs in the mitochondria in the cell. The number of ATP molecules produced in the Krebs cycle is 2.
Detailed explanation-4: -The stage that produces most of the ATP during cellular respiration is the electron transport system (ETS). The inner mitochondrial membrane holds the ATPase enzyme and the complexes for ETS.