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How many of the following organisms are ...

How many of the following organisms are associated with the production of single - cell protein ?
Yeast , Chlorella, Sprirulina , Nostoc, Methylophilus methylotrophus, Mushroom, Clostridium

A

Two

B

Five

C

Four

D

Three

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many of the listed organisms are associated with the production of single-cell protein (SCP), we will analyze each organism mentioned in the question. ### Step-by-Step Solution: 1. **Understanding Single-Cell Protein (SCP)**: - Single-cell protein refers to protein-rich biomass derived from microorganisms, including bacteria, yeast, and algae. It is characterized by high protein content and low fat content. 2. **Analyzing Each Organism**: - **Yeast**: Yeasts, particularly species like *Candida utilis*, are known for their ability to produce SCP. - **Conclusion**: Yeast is associated with SCP. - **Chlorella**: This is a type of green algae that is also known for its high protein content and is used as a source of SCP. - **Conclusion**: Chlorella is associated with SCP. - **Spirulina**: Another type of blue-green algae (cyanobacteria) that is rich in protein and often used as a dietary supplement. - **Conclusion**: Spirulina is associated with SCP. - **Nostoc**: This is a genus of cyanobacteria, but it is not commonly recognized for SCP production in the same way as Spirulina or Chlorella. - **Conclusion**: Nostoc is not primarily associated with SCP. - **Methylophilus methylotrophus**: This bacterium is known for its ability to utilize methanol and is recognized for producing SCP. - **Conclusion**: Methylophilus methylotrophus is associated with SCP. - **Mushroom**: Mushrooms are multicellular fungi and are not classified as single-cell protein sources. - **Conclusion**: Mushroom is not associated with SCP. - **Clostridium**: This genus includes various bacteria, but they are not typically associated with SCP production. - **Conclusion**: Clostridium is not associated with SCP. 3. **Counting the Organisms Associated with SCP**: - From the analysis, the organisms associated with SCP are: - Yeast - Chlorella - Spirulina - Methylophilus methylotrophus - This gives us a total of **4 organisms**. ### Final Answer: The total number of organisms associated with the production of single-cell protein is **4**.
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