Here's why:
* Yeast is a type of fungus that contains enzymes capable of breaking down sugars (like glucose) found in organic materials.
* This process is called fermentation.
* During fermentation, yeast consumes sugar and releases ethanol (alcohol) and carbon dioxide as byproducts.
While other factors like temperature, pH, and the presence of certain nutrients play a role in fermentation, yeast is the crucial biological catalyst responsible for the conversion of organic materials into alcohol.
