A number of organic compounds can be decomposed by

Options

A. acetobacter
B. Pseudomonas
C. mycoplasma
D. Chemoorganotrophs

Answer

To solve the question "A number of organic compounds can be decomposed by," we need to analyze the provided options one by one to identify which one is involved in the decomposition of organic compounds.

### Step-by-Step Solution:

1. **Identify the Options:**
The options given are:
- Acetobacter
- Pseudomonas
- Mycoplasma
- Chemoorganotrophs

2. **Analyze Acetobacter:**
- Acetobacter is a type of bacteria known primarily for its role in the fermentation process and is associated with the oxidation of ethanol to acetic acid.
- It is not primarily involved in the decomposition of organic compounds.
- **Conclusion:** Acetobacter is incorrect.

3. **Analyze Pseudomonas:**
- Pseudomonas are a group of bacteria that are known for their ability to degrade a wide range of organic pollutants.
- They are also involved in denitrification, which is the conversion of nitrates into nitrogen gas, but they play a significant role in decomposing organic matter.
- **Conclusion:** Pseudomonas is a potential candidate for decomposition.

4. **Analyze Mycoplasma:**
- Mycoplasma are bacteria that lack a cell wall and are known to be pathogens.
- They do not play a role in the decomposition of organic compounds.
- **Conclusion:** Mycoplasma is incorrect.

5. **Analyze Chemoorganotrophs:**
- Chemoorganotrophs are organisms that obtain energy by oxidizing reduced organic compounds.
- They are directly involved in the decomposition of organic materials, breaking them down into simpler substances.
- **Conclusion:** Chemoorganotrophs are the correct answer.

6. **Final Answer:**
- The correct answer to the question is **Chemoorganotrophs** as they are specifically involved in the decomposition of organic compounds.