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Fermentation is the anaerobic (without oxygen) respiration of sugar by yeast. This correctly indicates that oxygen is not used in the process, but its incorrect to say the absense of oxygen is required. Brewers yeast will ferment anaerobically in the presence of glucose at concentrations of > 1g/l. Brewers yeast has a high alcohol tolerance and produces alcohol as an inhibitor to competitive organisms. Once all the glucose is consumed brewers yeast will consume the alcohol. This phenomenom is known as the Crabtree Effect

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Q: Why is fermentation needed when oxygen is not available?
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Related questions

What element is not needed for fermentation?

oxygen


What molecule is needed for aerobic respiration but not for fermentation?

what molecule is needed for aerobic respiration but not for fermentation


When fermentation occurs what substances are available?

Oxygen


Which raw material is not needed fermentation to o?

Oxygen is not needed in fermentaion.


Is oxygen needed in ethyl alcohol fermentation?

Nope.


Fermentation occurs when a cell can't get?

oxygen needed for cellular respiration


How cells obtain energy when oxygen is not available?

fermentation


What reactant needed for the cellular respiration is absent from the fermentation?

Oxygen.


What raw material is not needed for fermentation to happen?

you have to go get a jobandgo ask your science teacher to helpif your teacher dont know the answer go to your house and look for the answerthen come and go to the mall if you got the answer


What reactant needed for cellular respiration is absent from the fermentation reaction?

oxygen


Why not let oxygen in your fermantation bottle?

Fermentation will only take place when oxygen is not available to cells.


Why would muscle cells bother with fermentation?

Fermentation is a way to produce energy when there isn't enough oxygen available.