Microorganism used in fermentation for alcohol is

Options

A. Lactobacillus
B. Saccharomyces
C. Pencilium
D. Acetobacter

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the microorganism that is used in the fermentation process to produce alcohol.

2. **Identifying the Options**: The options provided are:
- Lactobacillus
- Saccharomyces
- Penicillium
- Acetobacter

3. **Analyzing Each Option**:
- **Lactobacillus**: This is primarily involved in lactic acid fermentation, not alcohol fermentation.
- **Saccharomyces**: This is a genus of yeast that is well-known for its role in alcohol fermentation.
- **Penicillium**: This is a mold used in the production of antibiotics and some cheeses, not primarily for alcohol.
- **Acetobacter**: This is a bacteria that converts alcohol into acetic acid (vinegar), not used for alcohol fermentation.

4. **Selecting the Correct Answer**: Based on the analysis, the correct microorganism used in the fermentation of alcohol is **Saccharomyces**.

5. **Understanding the Process**: Saccharomyces yeast ferments sugars (like glucose) into ethyl alcohol and carbon dioxide. The process begins when glucose enters the yeast cell, where it is broken down into pyruvic acid, which is then converted into ethanol and carbon dioxide, releasing energy in the process.

6. **Conclusion**: Therefore, the microorganism used in fermentation for alcohol is **Saccharomyces**.