Which organism are used to make bread and beer?

Answer

**Step-by-Step Solution:**

1. **Understanding the Process**: The question asks about the organisms used to make bread and beer. Both of these products are created through a process called fermentation.

2. **Identifying the Role of Fermentation**: Fermentation is a metabolic process that converts sugar to acids, gases, or alcohol using microorganisms. In the context of bread and beer, fermentation is crucial for the production of these items.

3. **Recognizing the Organism Involved**: The primary organism responsible for fermentation in both bread and beer is yeast. Yeast is a type of unicellular fungus that plays a vital role in this process.

4. **Explaining the Function of Yeast**: During fermentation, yeast performs ethanol fermentation, which produces alcohol and carbon dioxide (CO2). In bread-making, the CO2 produced causes the dough to rise and become fluffy, while in beer-making, the alcohol is the desired product.

5. **Conclusion**: Therefore, the organism used to make both bread and beer is yeast.

**Final Answer**: Yeast is the organism used to make bread and beer.

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