QuestionJuly 5, 2025

During the linking step (pyruvate > acetyl-CoA): One CO_(2) is released and one NADH is produced per pyruvate FAD is reduced to FADH_(2) Two ATP are synthesized per pyruvate Lactate is generated under anaerobic conditions Question 2 How many times will Krebs cycle occur for each glucose molecule entering cellular respiration? 2 3 4 1 Question 3 What is the final electron acceptor in the electron transport? carbon dioxide water oxygen pyruvate glucose 1 pts 1 pts

During the linking step (pyruvate > acetyl-CoA): One CO_(2) is released and one NADH is produced per pyruvate FAD is reduced to FADH_(2) Two ATP are synthesized per pyruvate Lactate is generated under anaerobic conditions Question 2 How many times will Krebs cycle occur for each glucose molecule entering cellular respiration? 2 3 4 1 Question 3 What is the final electron acceptor in the electron transport? carbon dioxide water oxygen pyruvate glucose 1 pts 1 pts
During the linking step (pyruvate > acetyl-CoA): One CO_(2) is released and one NADH is produced per pyruvate FAD is reduced to FADH_(2) Two ATP are synthesized per pyruvate Lactate is generated under anaerobic conditions Question 2 How many times will Krebs cycle occur for each glucose molecule entering cellular respiration? 2 3 4 1 Question 3 What is the final electron acceptor in the electron transport? carbon dioxide water oxygen pyruvate glucose 1 pts 1 pts

Solution
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Answer

Question 2: 2 ### Question 3: oxygen Explanation 1. Determine Krebs Cycle Occurrences per Glucose Each glucose molecule produces 2 pyruvate molecules during glycolysis. Each pyruvate is converted to acetyl-CoA, which enters the Krebs cycle. Therefore, the Krebs cycle occurs **twice** for each glucose molecule. 2. Identify Final Electron Acceptor in Electron Transport Chain In the electron transport chain, oxygen acts as the final electron acceptor, combining with electrons and protons to form water.

Explanation

1. Determine Krebs Cycle Occurrences per Glucose<br /> Each glucose molecule produces 2 pyruvate molecules during glycolysis. Each pyruvate is converted to acetyl-CoA, which enters the Krebs cycle. Therefore, the Krebs cycle occurs **twice** for each glucose molecule.<br /><br />2. Identify Final Electron Acceptor in Electron Transport Chain<br /> In the electron transport chain, oxygen acts as the final electron acceptor, combining with electrons and protons to form water.
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