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1
In chemiosmosis, the energy comes from
A)electrons that are rich in kinetic energy.
B)electrons that are rich in potential energy.
C)ATP.
D)various cytochromes.
2
The complete breakdown of one molecule of pyruvic acid is called
A)glycolysis.
B)the Krebs cycle.
C)the electron-transport system.
D)the glycolytic oxidation-reduction system.
3
Anaerobic cellular respiration pathways that utilize glucose
A)are called fermentation pathways.
B)release less ATP and heat than aerobic pathways.
C)do not require oxygen.
D)All of the above.
4
The presence of lactic acid in muscles is indicative of ___________.
A)the fact that aerobic cellular respiration has occurred
B)the release of glucose from fats molecules
C)the presence of fat in the cells
D)the fact that anaerobic cellular respiration has occurred
5
The release of NH3 is associated with which of the following?
A)the metabolism of protein
B)the release of glucose from fats molecules
C)the metabolism of carbohydrates
D)anaerobic cellular respiration





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