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What is the role of yeast in the ethanol production process?

Practice Questions

Q1
What is the role of yeast in the ethanol production process?
  1. To produce carbon dioxide
  2. To convert sugars into ethanol
  3. To filter impurities
  4. To enhance flavor

Questions & Step-by-Step Solutions

What is the role of yeast in the ethanol production process?
  • Step 1: Yeast is a tiny living organism, similar to a fungus.
  • Step 2: When yeast is added to a mixture containing sugars (like from fruits or grains), it starts to eat the sugars.
  • Step 3: As the yeast eats the sugars, it produces two main byproducts: ethanol (alcohol) and carbon dioxide.
  • Step 4: The process of yeast converting sugars into ethanol and carbon dioxide is called fermentation.
  • Step 5: The ethanol produced can be collected and used as alcohol for beverages or fuel.
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