LABORATORY REVIEW
CELL RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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3
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2
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1
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4
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Detailed explanation-1: -Two turns are needed because glycolysis produces two pyruvic acid molecules when it splits glucose.
Detailed explanation-2: -(8.102). It should be clear that this reaction continually recycles and that it requires two cycles to process each glucose molecule.
Detailed explanation-3: -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-4: -The Krebs cycle is the second phase in cellular respiration. It occurs in the mitochondria in the cell. The number of ATP molecules produced in the Krebs cycle is 2.
Detailed explanation-5: -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.