Home
Class 11
BIOLOGY
Which of the following factors is known ...

Which of the following factors is known as Chirstmas factor ?

A

Factor `VIII`

B

Factor `XII`

C

Factor `IV`

D

Factor `IX`

Text Solution

Verified by Experts

The correct Answer is:
D

Christmas factor (factor `IX`) is a plasma thromboplastin component i.e., a thromboplastin activator present in blood plasma. Its deficiency causes congential disease called hemophilla B (also called Christmas desease).
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    NCERT FINGERTIPS|Exercise Biomolecules|137 Videos
  • BREATHING AND EXCHANGE OF GASES

    NCERT FINGERTIPS|Exercise Breathing And Exchange Of Gases|140 Videos

Similar Questions

Explore conceptually related problems

Which of the following factors is not related to motivation?

In which of the following co-factor is present ?

Which of the following is not a factor of 316?

Which of the following factors help in evolution but is considerd the basic factor for evolution :

NCERT FINGERTIPS-BODY FLUIDS AND CIRCULATION-Body Fluids And Circulation
  1. During the process of blood coagulation, vitamin K helps in

    Text Solution

    |

  2. Coagulation will not be affected in the absence of factor

    Text Solution

    |

  3. Which of the following factors is known as Chirstmas factor ?

    Text Solution

    |

  4. In the clotting mechanism pathway, thromin activates the factors

    Text Solution

    |

  5. Match column I with column II and select the correct option form the c...

    Text Solution

    |

  6. Most of our cells are surrounded by

    Text Solution

    |

  7. Which of the following statement is/are incorrect about lymph ? (i) ...

    Text Solution

    |

  8. Lymph nodes form

    Text Solution

    |

  9. The lymph serves to

    Text Solution

    |

  10. Read the following statements and select the correct option Statemen...

    Text Solution

    |

  11. Compared to blood our lymph has

    Text Solution

    |

  12. Which of the following statements is true for lymph ?

    Text Solution

    |

  13. Open circulatory system is present in underline(("i")) and underline((...

    Text Solution

    |

  14. Read the following statements and select the correct option Statemen...

    Text Solution

    |

  15. The given figure shows the vertical section of human heart. Identify t...

    Text Solution

    |

  16. Which of the following is correct about human heart ?

    Text Solution

    |

  17. Which of the following chambers of the heart has the thickest muscular...

    Text Solution

    |

  18. Heart pumps blood more forcefully in older persons than younger ones d...

    Text Solution

    |

  19. Pacemaker is situated in the

    Text Solution

    |

  20. Read the following statements and select the correct option Stateme...

    Text Solution

    |