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Energy Release and Conservation

Energy Release and Conservation
Before most molecules can enter the Krebs citric acid cycle, they must be converted to

acetyl-CoA
oxaloacetic acid
NADH or FADH
citric acid

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Energy Release and Conservation
Most bacterial fermentations yield how many net ATP molecules per molecule of glucose?

6
4
2
1

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Energy Release and Conservation
In cellular metabolism, O2 is used

in glycolysis
to provide electrons for photophosphorylation
as a terminal electron acceptor
in the Krebs cycle

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Energy Release and Conservation
In lactic acid fermentation, the final electron acceptor would be

glucose
fructose
acetyl-CoA
pyruvate

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Energy Release and Conservation
The amount of energy (cal/mole) in an ATP molecule produced by a cell from glucose by fermentation is

less than aerobic metabolism
greater than aerobic metabolism
exactly or approximately equal to aerobic metabolism
None of these

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Energy Release and Conservation
The number of ATP molecules produced from one glucose molecule by a bacterium producing lactic acid is

none of these
approximately equal to producing ethanol
lesser than producing ethanol
greater than producing ethanol

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