Yeast makes ethanol to prevent metabolic overload

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Why do some yeast cells produce ethanol? Scientists have wondered about this apparent waste of resources for decades. Now scientists think they have a solution: yeast cells produce ethanol as a 'safety valve,' to prevent overload when their metabolic operation reaches a critical level. The implications of this new theory could be far-reaching, as it also explains why cancer cells waste energy by producing lactate.

from Latest Science News -- ScienceDaily http://bit.ly/2QwDey2

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