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

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

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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?

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

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Energy Release and Conservation
Organisms can synthesize ATP by oxidative phosphorylation when they

pass electrons to oxygen through an electron transport system containing cytochromes
ferment
oxidize glucose to pyruvate
pass electrons from the oxidation of chlorophyll through an electron transport system

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