In biogas plant which group of bacteria is found

Options

A. Cyanobacteria
B. Myxobacteria
C. Mycobacteria
D. Archaebacteria

Answer

**Step-by-Step Solution:**

1. **Understanding Biogas Plants**: Biogas plants are facilities that convert organic matter into biogas through anaerobic digestion. This process involves the breakdown of organic materials in the absence of oxygen.

2. **Identifying the Key Microorganisms**: The primary microorganisms responsible for the production of biogas in these plants are known as methanogens. Methanogens are a specific group of bacteria that thrive in anaerobic (low oxygen) environments and are crucial for the conversion of organic matter into methane and other gases.

3. **Classifying Methanogens**: Methanogens belong to a unique group of bacteria known as Archaebacteria. This group is distinct from other bacteria due to their unique genetic and biochemical characteristics.

4. **Reviewing the Options**:
- **Cyanobacteria**: These are photosynthetic bacteria (often referred to as blue-green algae) and are not involved in biogas production.
- **Myxobacteria**: This group primarily feeds on organic matter in soil and is not related to biogas production.
- **Mycobacteria**: Known for being pathogenic, they cause diseases like tuberculosis and are not involved in biogas production.
- **Archaebacteria**: This is the correct group, as methanogens, which are essential for biogas production, fall under this category.

5. **Conclusion**: Based on the identification and classification of the bacteria involved in biogas production, the correct answer to the question "In biogas plants which group of bacteria is found?" is **Archaebacteria**.

**Final Answer**: Archaebacteria

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