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Yeast does not absolutely require oxygen to grow. However, the use of anaerobic growth via nutrition from sugars is an extremely inefficient method of growth for the yeast, leaving it much more susceptible to environmental effects that could damage it. Oxygen is immensely more useful for the yeast to grow, but without oxygen, yeast does useful things, like leavening bread and fermenting alcohol.

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Can yeast live without oxygen?

Yes, yeast can undergo fermentation to produce energy in the absence of oxygen. This process allows yeast to survive and grow even in anaerobic conditions.


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Yeast need warm temperatures in order to grow. The perfect temperature for yeast is about 110 degrees F. Yeast will not start to reproduce and rise without warm temperatures to activate it.


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If a yeast cell were to lose its mitochondria would it still be able to grow?

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Can a yeast infection grow worms?

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What ingredients make yeast grow?

Sugar makes yeast grow fastest when added to it with warm water


Under what type of conditions do yeast like to grow?

Yeast like to grow in warm and moist conditions.


What conditions is necessary for yeast to grow and multiply?

Yeast require energy to grow and divide its cells, therefore yeast grows best in sugar solution.


Does yeast grow better in sugar water or salt water?

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Why we add the sugar to active yeast?

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