LABORATORY REVIEW
CELL RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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0
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30
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2
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too many to count
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Detailed explanation-1: -Thus a total of 2 ATPs are generated from the fermentation of a glucose molecule.
Detailed explanation-2: -Without oxygen, some human cells must use fermentation to produce ATP, and this process produces only two molecules of ATP per molecule of glucose.
Detailed explanation-3: -Fermentation is less efficient at using the energy from glucose: only 2 ATP are produced per glucose, compared to the 38 ATP per glucose nominally produced by aerobic respiration.
Detailed explanation-4: -Net ATP production when one molecule of glucose is fermented to alcohol or lactic acid: When glucose ferments, there is a net gain of two ATP molecules in the glycolysis process. Both lactic acid and alcoholic fermentation proceed in the same way.
Detailed explanation-5: -Fermentation involves the step of glycolysis in respiration, but it does not go through the Kreb’s cycle or the Electron Transport Chain. Therefore there are only 2 net ATP generated, not the net of 32 that come from cellular respiration.