Eubacteria which oxidise inorganic chemicals such as Ammonia nitrate nitrites are

Options

A. Chemosynthetic autotrophic
B. Chemosynthetic heterotrophic
C. Photosynthetic autotrophic
D. Photosynthetic heterotrophic

Answer

To solve the question regarding which type of eubacteria oxidizes inorganic chemicals such as ammonia, nitrate, and nitrites, we can follow these steps:

### Step 1: Understand the Types of Bacteria
We need to identify the types of bacteria based on their nutritional modes. The options provided include:
1. Chemosynthetic Autotrophic
2. Chemosynthetic Heterotrophic
3. Photosynthetic Autotrophic
4. Photosynthetic Heterotrophic

### Step 2: Analyze Each Option
- **Chemosynthetic Autotrophic**: These bacteria utilize inorganic molecules (like ammonia, nitrates, and nitrites) as energy sources and convert them into organic compounds. This is a potential correct answer.

- **Chemosynthetic Heterotrophic**: These organisms typically rely on organic compounds for energy and carbon. This option is incorrect for the question.

- **Photosynthetic Autotrophic**: These organisms, such as plants, use sunlight to convert carbon dioxide and water into glucose. This option is incorrect as it does not involve the oxidation of inorganic chemicals.

- **Photosynthetic Heterotrophic**: These organisms also rely on organic compounds and do not oxidize inorganic chemicals. This option is incorrect.

### Step 3: Conclusion
Based on the analysis, the correct answer is **Chemosynthetic Autotrophic bacteria**, as they oxidize inorganic chemicals like ammonia, nitrates, and nitrites to derive energy.

### Final Answer
Eubacteria which oxidize inorganic chemicals such as ammonia, nitrate, and nitrites are **Chemosynthetic Autotrophic** bacteria.

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