Which one of the following has the potential to be an important source of protein because it has 10 times higher yield than wheat ?

Options

A. Spirogyra
B. Nostoc
C. Rhodospirillum
D. Spirulina

Answer

To solve the question regarding which organism has the potential to be an important source of protein due to its higher yield compared to wheat, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Options**: The question provides four options: Spirogyra, Nostoc, Rhodospirulum, and Spirulina.

2. **Understand the Context**: The question emphasizes the potential of these organisms to serve as a protein source, specifically mentioning a yield that is ten times higher than that of wheat.

3. **Analyze Each Option**:
- **Spirogyra**: This is a type of green algae, which is not known for high protein content compared to other sources.
- **Nostoc**: This is a genus of cyanobacteria (blue-green algae) but is not widely recognized for its protein yield.
- **Rhodospirulum**: This is a genus of purple non-sulfur bacteria, and while it has some nutritional value, it does not have the same protein yield as Spirulina.
- **Spirulina**: This is a type of cyanobacteria (often referred to as blue-green algae) that is known for its high protein content, boasting around 57 grams of protein per 100 grams.

4. **Conclusion**: Based on the analysis, Spirulina is recognized for its high protein yield, making it the correct answer to the question.

5. **Final Answer**: The organism that has the potential to be an important source of protein with a yield ten times higher than wheat is **Spirulina**.