Home
Class 12
BIOLOGY
Select the correct combination of the st...

Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms.
(i) Methanogens are archaebacteria which produce methane in marshy areas
(ii) Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen
(iii) Chemosnthetic autotrophic bacteria synthesise cellulose from glucose
(iv) Mycoplasma lack a cell wall and can survive without oxygen
The correct statements are

A

a,b, c and d

B

a,b, and d

C

c and d

D

a and d

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 76

    NTA MOCK TESTS|Exercise BIOLOGY|90 Videos

  • NTA NEET SET 78

    NTA MOCK TESTS|Exercise BIOLOGY|90 Videos

Similar Questions

Explore conceptually related problems

Select the correct combination of the statement of the statement (A-D) regarding the characteristics of certain organisms (A) Methanogens are Archaebacteria which produce methane in marshy areas (B) Nostoc is a filamentous blue-green algae which fixes atmospheric nitrogen (C) Chemosynthetic autotrophic bacteria synthesize cellulose from glucose (D) Mycoplasma lack a cell and cen survive without oxygen The correct statement are

Study the following statements and select the correct ones (i) Methanogens are archeabacteria which produce methane in marshy areas (ii) Nostoc is a filamentous blue green alga which fixes atmospheric nitrogen. (iii) Many membres of the genus Glomus form my corrhiza.

Study the following statements and select the correct ones . (i) Methanogens are archaebacteria which fixes atmsopheric nitrogen (ii) Nostic is a filamentous blue green alga which fixes atmospheric nitrogen. (iii) Mycoplasma lack cell wall and can surive without oxygen.

Select correct statement w.r.t Nostac. A. It is a filamentous blue-green algae B. Has ability to fix atmospheric nitrogen in specialised cells having thin wall C. Performs oxygenic photosynthesis

Select the correct combination of statements regarding the characteristics of productivity : I. The rate of biomass production is called productivity and is expressed in terms of kcal m^(-2) II. Gross primary productivity is rate of production of biomass during photosynthesis II. Gross primary productivity minus respiration loss is called net primary productivity IV. Primary productivity depends only on the plant species inhabiting a particular area. The correct statements are

Select the correct statements regarding the characteristis of acquired immunity. (i) Cell-mediated immunity is responsible for acquired immunity. (ii) It produces a primary response of low intensity. (iii) Active and passive immunity are types of acquired immunity, (iv) Polymorphonuclear leucocytes and natural killer cells are involved in acquired immunity.

Which of the following statement is correct regarding the nitrogen molecule? (i) it is diamagnetic and diatomic (ii) It is contains a triple bond (iii) It is very stable (iv) It is inert at room temperature

Given below are four statements (i-iv) regarding human blood circulatory system (i) Arteries are thick-walled and have narrow lumen as compared to veins (ii) Angina is acute chest pain when the blood circulation to the brain is reduced (iii) Persons with blood group AB can donate blood to any person with any blood group under ABO system (iv) Calcium ions play a very important role in blood clotting Which two of the above statements are correct ?

Read the following statements and choose the correct option. (i) Mycoplasma lacks a cell membrane. (ii) Mycoplasma are the smallest living cells to exist on the planet. (iii) Mycoplasma survives only without oxygen.

NTA MOCK TESTS-NTA NEET SET 77-BIOLOGY
  1. The homologous , chromosomes line up at the equator in pairs, name of ...

    Text Solution

    |

  2. Which of the classes doesn't belong to the same superclass ?

    Text Solution

    |

  3. Select the correct combination of the statements (i-iv) regarding the ...

    Text Solution

    |

  4. Match the amino acid with its correct R group .

    Text Solution

    |

  5. The mitochondria

    Text Solution

    |

  6. What will happen to the body of an adult man if the spleen is removed ...

    Text Solution

    |

  7. Hormone which regulates water and electrolyte balance is released from...

    Text Solution

    |

  8. Which of the following structure is homologous to penis ?

    Text Solution

    |

  9. Find out the incorrect statement .

    Text Solution

    |

  10. Condoms are one of the most contraceptives because of the following re...

    Text Solution

    |

  11. Mark the incorrect option .

    Text Solution

    |

  12. The correct arrangement of blood cell is

    Text Solution

    |

  13. Expiratory capacity - Inspiratory capacity + X = Functional residual c...

    Text Solution

    |

  14. A large number of proteins made by the ribosomes get modified in .

    Text Solution

    |

  15. Diabetes is one of the most common lifestyle disorders in India , whic...

    Text Solution

    |

  16. In the resting state , which protein masks the active binding sites o...

    Text Solution

    |

  17. Which of the following is NOT true of a synapse?

    Text Solution

    |

  18. Which one of the following statement is true for cockroach ?

    Text Solution

    |

  19. Many diseases can be diagnosed by observing the symptoms in the patien...

    Text Solution

    |

  20. The region outside the seminiferous tubules is called interstitial spa...

    Text Solution

    |