Yeasts poison themselves to death when the co | vedclass

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Question

(B) In the process of fermentation,yeast cells perform anaerobic respiration to produce ethanol and $CO_2$. As the concentration of ethanol increases

Vedclass · Accepted Answer

$13$

Vedclass · Answer

(B) In the process of fermentation,yeast cells perform anaerobic respiration to produce ethanol and $CO_2$. As the concentration of ethanol increases in the surrounding medium,it becomes toxic to the yeast cells. When the concentration of alcohol reaches approximately $13 \%$,the yeast cells are poisoned and die,which stops the fermentation process. Therefore,the correct answer is $13 \%$.

Yeasts poison themselves to death when the concentration of alcohol reaches about $........$ (in $\%$)

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