Which is correctly assigned regarding the organism and its corresponding group

Options

A. Paramecium and Plasmodium belong to same kingdom as that of Penicillium
B. Lichen is a composite organism formed from symbiotic association of an alga and a protozoan
C. yeast used in making beer and bread is a fungus
D. Nostoc and Anabaena are examples of protista.

Answer

To solve the question regarding the correct assignment of organisms to their corresponding groups, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Option 1: Paramecium and Plasmodium belong to the same kingdom as that of Penicillium.**
- **Analysis**:
- Penicillium is a fungus and belongs to the kingdom Fungi.
- Paramecium and Plasmodium are both classified under the kingdom Protista.
- Therefore, this statement is incorrect as they belong to different kingdoms.
- **Conclusion**: This option is wrong.

2. **Option 2: Lichen is a composite organism formed by symbiotic association between an alga and a protozoan.**
- **Analysis**:
- Lichens are actually formed by a symbiotic association between fungi and algae (not protozoans).
- The algae can be green algae or cyanobacteria, which perform photosynthesis, while fungi provide structure and absorb water and minerals.
- **Conclusion**: This option is also wrong.

3. **Option 3: Yeast used in making bread and beer is a fungus.**
- **Analysis**:
- Yeast, specifically Saccharomyces cerevisiae, is indeed a fungus and belongs to the class Ascomycetes.
- It is used in baking (baker's yeast) and brewing (brewer's yeast), confirming its role in both industries.
- **Conclusion**: This option is correct.

4. **Option 4: Nostoc and Anabina are examples of Protista.**
- **Analysis**:
- Nostoc and Anabena are cyanobacteria, which are classified under the kingdom Monera, not Protista.
- They are known for their nitrogen-fixing capabilities.
- **Conclusion**: This option is incorrect.

### Final Answer:
The only correct option is **Option 3: Yeast used in making bread and beer is a fungus.**

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