Yeast (specifically Saccharomyces cerevisiae) is the primary organism used in the production of both bread and beer due to its ability to perform fermentation.In Bread Making: Yeast ferments the sugars in dough to produce carbon dioxide (CO 2 ) and ethanol. The gas gets trapped in the dough, causing it to rise and creating a light, fluffy texture.In Beer Making: Yeast ferments the sugars from malted grains (like barley) into ethanol (alcohol) and carbon dioxide. In this process, ethanol is the desired product for the beverage.

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