CELL RESPIRATION
THE KREBS CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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0%
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25%
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50%
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75%
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Detailed explanation-1: -Results of the Krebs Cycle After the second turn through the Krebs cycle, the original glucose molecule has been broken down completely. All six of its carbon atoms have combined with oxygen to form carbon dioxide.
Detailed explanation-2: -Note that this cycle runs twice for every molecule of glucose which undergoes oxidation during glycolysis, as two molecules of pyruvate are formed.
Detailed explanation-3: -Hence, during the complete oxidation of one molecule of glucose, 38 molecules of ATP are produced.
Detailed explanation-4: -At the end of the Krebs cycle, the final product is oxaloacetic acid. This is identical to the oxaloacetic acid that begins the cycle. Now the molecule is ready to accept another acetyl-CoA molecule to begin another turn of the cycle.