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Non-symbiotic nitrogen fixation takes pl...

Non-symbiotic nitrogen fixation takes place by

A

Nostoc, Azotobacter, Clostridium

B

Anabena, Nostoc, Rhizobium

C

Azotobacter, Nitrosomonas, Rhizobium

D

Anabena, Nitrosomonas, Pseudomonas

Text Solution

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The correct Answer is:
a
Non-symbiotic nitrogen fixation takes place by Blue-green algae (Noetoc and Anabena) and free living soil bacteria (the Azotobacter species and the anaerobic Clostridium species).
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Knowledge Check

  • Nitrogen fixation is

    A
    Converting nitrogen in the air to form a usable form by plants
    B
    Recycling nitrogen from organic matter in the soil
    C
    Absorbing nitrogen from the soil.
    D
    Conversion of `NO_(3)` to `N_(2)`

  • Nitrogen fixation is

    A
    Performed by plants only
    B
    The oxidation of `N_(2)`
    C
    The reduction of `NH_(3)` to `NO_(3)`
    D
    Multi-stepped chemical reaction

  • Nitrogen fixation is

    A
    Nitrogen `rarr` Ammonia
    B
    Nitorgen `rarr` Nitrates
    C
    Nitrogen `rarr` Amino acids
    D
    Both A and B

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