The micro - organisms which is capable of converting sugar into alcohol and carbon and carbon dioxide is :

Options

A. Bacterium
B. fungus
C. alga
D. protozoan

Answer

**Step-by-Step Solution:**

1. **Understanding the Process**: The question asks about a microorganism that converts sugar into alcohol and carbon dioxide. This process is known as fermentation.

2. **Identifying the Sugar**: The sugar typically referred to in this context is glucose. During fermentation, glucose is broken down.

3. **Anaerobic Conditions**: Fermentation occurs in anaerobic conditions, meaning it takes place without oxygen. This is crucial for the conversion process.

4. **Conversion Process**: In the fermentation process, glucose is first converted into pyruvate. Then, in the absence of oxygen, pyruvate is further converted into alcohol (ethanol) and carbon dioxide.

5. **Identifying the Microorganism**: The specific microorganism that performs this conversion is yeast, which is a type of fungus. Yeast is widely used in the brewing and baking industries for this purpose.

6. **Conclusion**: Therefore, the microorganism that converts sugar into alcohol and carbon dioxide is yeast.

**Final Answer**: Yeast (a type of fungus).

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