Which one is used in production of alcohol / ethanol ?

Options

A. Saccharmoyces cerevisiae
B. Torulopsis utilis
C. Clostridium botulinum
D. Leuconostoc citrovorum.

Answer

**Step-by-Step Solution:**

1. **Understanding the Process of Alcohol Production:**
- Alcohol, specifically ethanol, is produced through a biological process known as fermentation. This process involves the conversion of sugars into alcohol and carbon dioxide.

2. **Identifying the Organism Involved:**
- The primary organism used in the fermentation process for alcohol production is yeast. Yeast is a unicellular fungus that plays a crucial role in converting sugars into ethanol.

3. **Specific Yeast Species:**
- The species of yeast commonly used for alcohol production is *Saccharomyces cerevisiae*. This yeast is particularly effective because it can ferment sugars in the absence of oxygen, a process known as anaerobic fermentation.

4. **Byproducts of Fermentation:**
- During fermentation, in addition to ethanol, carbon dioxide is also produced as a byproduct. This is important in various applications, such as in the production of bread and alcoholic beverages.

5. **Excluding Other Options:**
- Other organisms listed in the options, such as *Chorolopsis utilis*, *Clostridium*, and *Leuconostoc*, are not used for the fermentation process to produce ethanol. They may have other uses in microbiology but are not involved in alcohol production.

6. **Conclusion:**
- Therefore, the correct answer to the question of which organism is used in the production of alcohol/ethanol is *Saccharomyces cerevisiae*.

**Final Answer:**
- The organism used in the production of alcohol/ethanol is *Saccharomyces cerevisiae* (yeast).

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