Fermentation is anaerobic production of

Options

A. Protein and acetic acid
B. Alcohol , lactic acid or similar compounds
C. Ethers and acetones
D. Alchohol and lipoporteins

Answer

To solve the question "Fermentation is anaerobic production of", we need to analyze the options provided and understand the process of fermentation.

### Step-by-Step Solution:

1. **Understanding Fermentation**:
- Fermentation is a metabolic process that occurs in the absence of oxygen (anaerobic).
- It involves the conversion of sugars (like glucose) into simpler compounds.

2. **Identifying the Products of Fermentation**:
- The primary products of fermentation can include:
- Alcohol (ethanol) in alcoholic fermentation.
- Lactic acid in lactic acid fermentation.
- Other by-products may include carbon dioxide and various organic acids.

3. **Analyzing the Options**:
- **Option A**: Protein and acetic acid.
- Proteins are not produced during fermentation; acetic acid is not a primary product.
- **Option B**: Alcohol, lactic acid, and similar compounds.
- This option includes both alcohol (ethanol) and lactic acid, which are indeed produced during fermentation.
- **Option C**: Ethers and acetone.
- Ethers and acetone are not typical products of fermentation.
- **Option D**: Alcohol and lipoprotein.
- While alcohol is a product, lipoprotein is not formed during fermentation.

4. **Conclusion**:
- The correct answer is **Option B: Alcohol, lactic acid, and similar compounds**.

### Final Answer:
Fermentation is anaerobic production of **alcohol, lactic acid, and similar compounds**.