Home
Class 12
BIOLOGY
Read the given statements A & B and choo...

Read the given statements A & B and choose the correct option. Br A- The enzyme nitrogenase is made up of Mo - Fe protein. Br B- The synthesis of ammonia requires very high input of energy i.e. 8 ATP for each `NH_3` produced

A

Only A is correct

B

Only B is correct

C

Both A and B are incorrect

D

Both A and B are corrects

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TEST 6

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|712 Videos

  • TEST 9

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|173 Videos

Similar Questions

Explore conceptually related problems

Read the given statements and choose the correct option: A. Yeasts poison themselves to death when the concentration of alcohol reaches about 10%. B. During glucose activation phase of glycolysis, 2 ATP are consumed,

Read the oven statements and choose the correct option br A- Like dark reactions, light reactions are also temperature sensitive but are affected to a much lesser extent, br B- C_4 plants respond to lower temperatures and show higher rate of photosynthesis.

Read the given statements and select the correct option. Statement 1 : The cloning vector is required to have very few, preferably single, recongnition sites for the commonly used restriction enzymes. Statement 2: Presence of more than one recongnition sites within a cloning vector will generate several fragments, which will complicate the process of gene cloining. 1) Both statements 1 and 2 are correct 2) statement 1 is correct but statement 2 is incorrect 3) statement 1 is incorrect but statement 2 is correct 4) None of the above

Read the following statements and select the correct option. Statement (i)Pure water has the highest water potential, i.e. zero. Statement (ii)Process of diffusion does not require any input of energy. Statement (iii)Water moves from the system containing water at higher water potential to the one having lower water potential.

State true (T) or false (F) for the given statements and choose the correct option. Br (a) Seeds of Pinus cannot germinate properly without mycorrhizal associations br (b) During passive absorption of water by roots a positive pressure is developed in xylem.

Read the given four statements and choose the correct option. a. An alien DNA is linked with the "ori" for multiplication b. Normal E.coli cells do not carry antibiotic resistant genes for tetracycline and ampicilin c. Salmonella typhimurium carry gene for resistance against antibiotic d. An antibiotic resistance gene can be used as a selectable marker or cloning site

Read the given statements and select the correct option Statement 1 : In insertional inactivation, blue colour produced by bacterial colonies indicates that the plasmid does not have an insert into the bacterial genome. Statement 2: Presence of insert results into insertional inactivation of beta -galactosidase enzyme and the colonies do not produce any colour. A) Both statements 1 and 2 are correct B) statement 1 is correct but statement 2 is incorrect C) statement 1 is incorrect but statement 2 is correct D) Both statements 1 and 2 are incorrect

Read the statement and choose the correct option I. Secretion of interferons is a physiological barrier of innate immunity II. T-lymphocytes are responsible for cell mediated immunity III. Injection given against snake venom is a type of active immunisation IV. Antibodies produced during allergic reactions are of IgA type (a) i and ii are correct (b) ii and iv alone are correct (c) iii alone is correct (d) ii alone is correct

Read the following statements and choose the correct one from the options given below. (i) Hydroponics is the practice of growing plants in nutrient - enriched water , without soil. (ii) Hydroponics has been successfully employed as a technique for the commercial production of vegetables such as tomato. (iii) Hydroponics methods require purified water and non - mineral nutrient salts. (iv) The nutrient solutions should not be aerated to obtain optimum growth. (a) (i) and (ii) only (b) (i) and (ii) only (c) (i) , (iii) and (iv) only (d) (i) , (ii) , (iii) and (iv)

Read the given statements and select the correct option w.r.t. true and false : br (a) Duration of each cardiac cycle is 0.8 seconds which can be altered in fear or fight conditions, br (b) Rapid passive ventricular filling takes place when auricles are in diastole and auriculoventricular valves remain closed, br (c) Semilunar valves open when intraventricular pressure exceeds the pressure within aorta, br (d) Sinoatrial node comprises of autoexcitable tissue.

AAKASH INSTITUTE ENGLISH-TEST 7-Exercise
  1. In germinating fatty seeds, fats are converted to sugars by

    Text Solution

    |

  2. Universal donor of blood is

    Text Solution

    |

  3. Read the given statements A & B and choose the correct option. Br A- T...

    Text Solution

    |

  4. What is true about photorespiration? a- It is also known as C2 cycle ...

    Text Solution

    |

  5. CO2 fertilization effect signifies

    Text Solution

    |

  6. How many of the following are correct regarding plant hormone ABA? Br ...

    Text Solution

    |

  7. Which one lateral meristem is completely primary in origin?

    Text Solution

    |

  8. If in a flower, Female reproductive part occupies the highest position...

    Text Solution

    |

  9. Which of the following layer of cell wall is capable of growth and gra...

    Text Solution

    |

  10. If there are 20 chromosomes in a pollen grain of a diploid plant then ...

    Text Solution

    |

  11. Opposite phyllotaxy is found in

    Text Solution

    |

  12. The fungus in which ascus formation occurs but no ascocarp is seen is

    Text Solution

    |

  13. Protists obtain their food by ( a-)Chemosynthesis, ...

    Text Solution

    |

  14. In plants, how many of the following symptoms are due to viral infecti...

    Text Solution

    |

  15. The deuteromycetes generally reproduce by asexual spores known as

    Text Solution

    |

  16. Pacemaker enzyme of EMP pathway is

    Text Solution

    |

  17. A flower can be cut into two equal or identical halves in any radial p...

    Text Solution

    |

  18. Heterocysts are specialised cells found in some BGA. They are speciali...

    Text Solution

    |

  19. Lichens cannot tolerate A especially due to B Fill the blanks with sui...

    Text Solution

    |

  20. In bryophytes, spores get disseminated by

    Text Solution

    |