Home
Class 11
BIOLOGY
Assertion: Ammonia is converted into nit...

Assertion: Ammonia is converted into nitrate by soil bacteria like Nitrosomonas and Nitrobacter
Reason: Denitrification is carried by bacteria Pseudomonas and Azotobacter.

A

If both assertio and reason are true and reason is the correct explanation of assertion

B

if both assertion and reason are true but reason is not the correct explanation of assertion

C

if assertion is true but reason is false

D

if both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
C
Ammonia is first oxidised to nitrite by the bacteria Nitrosomonas and/or Nitrosococuccus. The nitriate is further oxidised to nitrate with the help of the bacteria Nitrobacter, and/or Nitrocysits. These steps are called nitrification. These nitrifying bacteria are chemoautotrophs.
Promotional Banner

Topper's Solved these Questions

  • LOCOMOTION AND MOVEMENT

    NCERT FINGERTIPS|Exercise Locomotion And Movement|139 Videos

  • MORPHOLOGY OF FLOWERING PLANTS

    NCERT FINGERTIPS|Exercise Morphology Of Flowering Plants|135 Videos

Similar Questions

Explore conceptually related problems

In ecosystem , denitrification is carried by bacteria

Nitrifying bacteria such as Nitrosomonas and Nitrobacter are

Assertion: Nitrate present in the soil is reduced to nitrogen by the process of denitrification Reason: Denitrification is carried by bacteria Pseudomonas asnd Azotobacter.

Nitrosomonas and Nitrobacter like nitrifying bacteria are members of

Nitrosomonas bacteria converts

Bacteria Nitrosomonas converts :

The process of converting ammonia to nitrate by bacteria is known as

During nitrification, which bacteria converts ammonia to nitrate

A : Ammonia is oxidised first to nitrate then to nitrite by the action of Nitrosomonas and Nitrobacter respectively. R : Nitrite thus formed is absorbed by leaves.

NCERT FINGERTIPS-MINERAL NUTRITION-Mineral Nutrition
  1. Which one of the following symptoms is not due to manganese toxicity i...

    Text Solution

    |

  2. Reaction carried out by N(2) fixing microbes include 2NH(3)+3O(2)to2...

    Text Solution

    |

  3. With regard to the bilogical nitrogen fixation by Rhizobium in associa...

    Text Solution

    |

  4. Match the element with its associated functions/roles and choose the c...

    Text Solution

    |

  5. Plants can be grown in (Tick the incorrect option)

    Text Solution

    |

  6. Assertion: The technique of growing plants in a nutrient solution is k...

    Text Solution

    |

  7. Assertion: Some essential elements are called structural element of ce...

    Text Solution

    |

  8. Assertion: Plants absorb calcium from soil in the form of calcium ions...

    Text Solution

    |

  9. Assertion: Sulphur is the main constituent of several coenzymes, vitam...

    Text Solution

    |

  10. Assertion: Plants obtain molybdenum in the form of molybdate ions (MoO...

    Text Solution

    |

  11. Assertion: Deficiency symptoms appear when the availability of the ess...

    Text Solution

    |

  12. Assertion: Necrosis occurs due to deficiency of Ca, Mg, Cu and K. Re...

    Text Solution

    |

  13. Assertion: The prominent symptom of manganese toxicity is the appearan...

    Text Solution

    |

  14. Assertion: The movement of ions into or out of the cells is usually ca...

    Text Solution

    |

  15. Assertion: As per carbonic acid exchange theory of mineral salt absorp...

    Text Solution

    |

  16. Assertion: Ammonia is converted into nitrate by soil bacteria like Nit...

    Text Solution

    |

  17. Assertion: Nitrate present in the soil is reduced to nitrogen by the p...

    Text Solution

    |

  18. Assertion: Reduction of nitrogen to ammnia by living organisms is call...

    Text Solution

    |

  19. Assertion: The enzyme nitrogenase is a Mo-Fe protein and catalyses the...

    Text Solution

    |

  20. Assertion: Reductive amination involves the transfer of amino group fr...

    Text Solution

    |