The Pasteur Effect Shows That Yeasts Consume Glucose at a Higher

The Pasteur effect shows that yeasts consume glucose at a higher rate under anaerobic conditions than under aerobic conditions. Which of the following statements correctly explains this observation?

A) Yeasts are obligate anaerobes, so aerobic conditions will kill yeasts.
B) Yeasts are photosynthetic, so they are able to produce their own oxygen.
C) Less ATP is made under anaerobic conditions, so more glucose must be consumed to produce an equivalent amount of ATP.

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