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An unicellular alga is...

An unicellular alga is

A

Nostoc

B

Spirogyra

C

Chlamydomonas

D

Vaucheria

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The correct Answer is:
**Step-by-Step Solution:** 1. **Identify the Options**: The question presents four options for unicellular algae: Nostoc, Spirogyra, Chlamydomonas, and Voucheria. 2. **Analyze Each Option**: - **Nostoc**: This is a multicellular form of algae that is known for fixing atmospheric nitrogen. Therefore, it cannot be classified as unicellular. - **Spirogyra**: This is also a multicellular alga characterized by its long filamentous structure. Hence, it is not unicellular. - **Chlamydomonas**: This is a well-known unicellular alga. It consists of a single cell that can live in aquatic environments. Chlamydomonas has flagella for movement and can perform photosynthesis due to the presence of chlorophyll. - **Voucheria**: Similar to Nostoc and Spirogyra, Voucheria is a multicellular alga. 3. **Conclusion**: After analyzing all the options, the only unicellular alga among the given choices is **Chlamydomonas**. 4. **Final Answer**: The unicellular alga is **Chlamydomonas**. ---
**Step-by-Step Solution:** 1. **Identify the Options**: The question presents four options for unicellular algae: Nostoc, Spirogyra, Chlamydomonas, and Voucheria. 2. **Analyze Each Option**: - **Nostoc**: This is a multicellular form of algae that is known for fixing atmospheric nitrogen. Therefore, it cannot be classified as unicellular. - **Spirogyra**: This is also a multicellular alga characterized by its long filamentous structure. Hence, it is not unicellular. - **Chlamydomonas**: This is a well-known unicellular alga. It consists of a single cell that can live in aquatic environments. Chlamydomonas has flagella for movement and can perform photosynthesis due to the presence of chlorophyll. ...
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  • Which of the following unicellular algae are used as source of oxygen in space research?

    A
    Ulothrix
    B
    Spirogyra
    C
    Chlorella
    D
    Odogonium

  • Which of the following unicellular algae reproduce by auxospores, have silicified cell wall and store food in the form of fats, leucosine and chrysolaminarin ?

    A
    Diatoms
    B
    Red Algae
    C
    Dinoflagellates
    D
    Euglenoids

  • According to five kingdom system the unicellular algae like Dinoflagellates, Diatoms and Euglenoids are included in kingdom :-

    A
    Monera
    B
    Protista
    C
    Plantae
    D
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