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

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

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Energy Release and Conservation
Which of the following best explains about the usefulness of the production of ethanol in yeast cells under anaerobic conditions?

Yeast would be unable to activate the enzymes of the Krebs cycle without ethanol
The process generates oxygen, which is required for glycolysis
Ethanol keeps the electron transport system functioning
The process regenerates NAD+, which is required for glycolysis

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