Yeast is employed for production of

Options

A. Curd
B. Cheese
C. Acetic acid
D. Ethyl alcohol

Answer

**Step-by-Step Solution:**

1. **Identify the Organism**: Recognize that yeast is a type of fungus, specifically a unicellular fungus. The most commonly known yeast used in fermentation is *Saccharomyces cerevisiae*.

2. **Understand the Process**: Yeast is primarily used in fermentation processes. During fermentation, yeast converts sugars (carbohydrates) into alcohol and carbon dioxide.

3. **Determine the Product**: The main product of yeast fermentation is ethyl alcohol (ethanol). This is the alcohol found in beverages like beer and wine.

4. **Evaluate Other Options**:
- Curd is produced by bacteria, specifically *Lactobacillus*.
- Cheese is also produced by bacteria, including *Lactobacillus* and *Streptococcus*.
- Acetic acid is produced by acetic acid bacteria, not yeast.

5. **Conclusion**: Based on the fermentation process and the products involved, the correct answer is that yeast is employed for the production of ethyl alcohol.

**Final Answer**: Ethyl alcohol.

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