Home
Class 11
BIOLOGY
The common nitrogen-fixer in paddy field...

The common nitrogen-fixer in paddy fields is :

A

Rhizobium

B

Azospirillum

C

Oscillatoria

D

Frankia

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • PLANT KINGDOM

    SARAS PUBLICATION|Exercise EXAMPLE|161 Videos

  • REPRODUCTIVE MORPHOLOGY

    SARAS PUBLICATION|Exercise EXAMPLE|288 Videos

Similar Questions

Explore conceptually related problems

Atomicity of nitrogen is

What is nitrogen fixation?

What is nitrogen fixation.

Now a days azolla is an inevitable organism in paddy field. Why?

In a village , out of the total number of people , 80 percentage of the people own coconut groves and 65 percent of the people own paddy fields. What is the minimum percentage of people own both?

Match the common names of the given plant species with their respective binomials. {:("(A) Paddy","(i) Vigna radiata"),("(B) Lady's finger","(ii) Titicum aestivum"),("(C) Wheat","(iii) Oryza sativa"),("(D) Green gram","(iv) Abelmoschus esculentus"):}

The mass of 1 atom of nitrogen is

The composition of Nitrogen in the atmosphere is _____

SARAS PUBLICATION-PLANT PHYSIOLOGY-EXAMPLE
  1. The figure given is a diagrammatic representation of response of organ...

    Text Solution

    |

  2. One of the free - living anaerobic nitrogen -fixer is:

    Text Solution

    |

  3. The common nitrogen-fixer in paddy fields is :

    Text Solution

    |

  4. Carrier ions like Na^+ facilitate the absorption of substances like:

    Text Solution

    |

  5. The energy releasing metabolic process in plant is which substrate i...

    Text Solution

    |

  6. C plants are more efficient in photosynthesis than C3- plants due to...

    Text Solution

    |

  7. Important site for formation of glycoproteins and glycolipids is:

    Text Solution

    |

  8. Which one of the following elements in plants, is not remobilised?

    Text Solution

    |

  9. In land plants the guard cells differ from other epidermal cells in ha...

    Text Solution

    |

  10. The curve given below show enzymatic activity with relation to three c...

    Text Solution

    |

  11. Which one of the following structural formulae of two organic compound...

    Text Solution

    |

  12. The initial step inthe digestion of milk in humans is carried out by?

    Text Solution

    |

  13. When a -neuron is in resting state i.e not conducting any impulse , th...

    Text Solution

    |

  14. Which one of the following statements for pyramid of energy is incorre...

    Text Solution

    |

  15. Pheretima and its close relatives derive nourishment from

    Text Solution

    |

  16. A process that makes important difference between C3 and C4 plant is:

    Text Solution

    |

  17. Best defined function of manganese (Mn) in green plants is

    Text Solution

    |

  18. Given below is the diagrammatic representation of one of the categori...

    Text Solution

    |

  19. Which one of the following microbes forms symbiotic association with p...

    Text Solution

    |

  20. Which one single organism or the pair of organism is correctly assigne...

    Text Solution

    |