Home
Class 12
BIOLOGY
Assertion :- Porthrombinase enzymes conv...

Assertion `:-` Porthrombinase enzymes converts prothrombin into active thrombin.
Reason`:` Thromboplastin react with plasma protein in the presece of `Ca^(+2)` ions to form prothrombinase.

A

If both assertion 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:
B
Promotional Banner

Topper's Solved these Questions

  • BODY FLUIDS AND CIRCULATION

    MOTION|Exercise Exercise -3 AIPMT & NEET Previous Year Questions|33 Videos
  • BIOTECHNOLOGY: AND ITS APPLICATIONS

    MOTION|Exercise CHECK YOUR CONCEPTS-5|1 Videos
  • BREATHING AND EXCHANGE OF GASES

    MOTION|Exercise Exercise 4|21 Videos

Similar Questions

Explore conceptually related problems

Assertion :- Porthrombinase enzymes converts prothrombin into active thrombin. Reason : Thrmoboplastin react with plasma protein in the presece of Ca^(+2) ions to form prothrombinase.

Assertion (A) : Acidic pH of insect converts inactive Bt toxin into active form Reason (R) : Most of Bt toxins are insect group specific.

Assertion- Enzymes lowers the activation energy of the reaction. Reason- Higher activation energy helps the molecules to react with greater rate.

Assertion : Fibrins are formed by the conversion of inactive fibrinogens on the plasma by the enzyme thrombin Reason : Plasma without fibrinogen and blood corpuscles is called serum.

Assertion :- Carbonic acid is more formed inside the RBC's than the plasma. Reason :- An enzyme carbonic anhydrase is present inside the RBC's

Assertion: Bacillus thuringiensis produces protein that kills lepidopteran insect only Reason :It forms active protein crystals during a particular phase of their growth

Assertion: Tertiary structure is absolutely necessary for the many bioligical activities of proteins Reason : Tertiary structure is more stable form due to existance of other kinds of bonds

Assertion (A) Most mineral must enter the root by the active absorption into the cytoplasm of epidermal cells. Reason (R ) This transportation needs energy in the form of ATP . Some ions also move into the epidermal cells passively.

MOTION-BODY FLUIDS AND CIRCULATION-EXERCISE -4 AIIMS | Assertion & Reason Questions
  1. Assertion : Heparin prevent coagulation of blood in blood vessels. Re...

    Text Solution

    |

  2. Assertion : Most of the human haemoglobin in our body has 2 alph and 2...

    Text Solution

    |

  3. Assertion :- Porthrombinase enzymes converts prothrombin into active t...

    Text Solution

    |

  4. Assertion : During diastole, ventricles receives blood from auricles. ...

    Text Solution

    |

  5. Assertion : Though AV node generates impulses, it is still not called ...

    Text Solution

    |

  6. Assertion : A portal system start and ends with blood capillaries. R...

    Text Solution

    |

  7. Assertion : Systolic pressure is higher then diastolic pressure. Rea...

    Text Solution

    |

  8. Assertion : Generally old people have higher blood pressure. Reason ...

    Text Solution

    |

  9. Assertion : If the muscles of both auricles of the person permanently ...

    Text Solution

    |

  10. Assertion :- If all external nerve supplies to a human heart are cut t...

    Text Solution

    |

  11. Assertion :- Lymph is the filtered blood from capillaries, which is ri...

    Text Solution

    |

  12. Assertion : In joint diastole, all the four chamber of heart are in r...

    Text Solution

    |

  13. Assertion : The pause between the end of the second sound and the beg...

    Text Solution

    |

  14. Assertion : LUBB (First Sound) is of shorter duration and sharp sound...

    Text Solution

    |

  15. Assertion : Portal system consists of veins which start from capillari...

    Text Solution

    |

  16. Assertion: Atherosclerosis affects the vessels that supply blood to th...

    Text Solution

    |

  17. Assertion : In amphibians incomplete double circulation presents. Re...

    Text Solution

    |

  18. Assertion : In open circulatory system blood is pumped by heart passes...

    Text Solution

    |

  19. Assertion: In fishes single circulation occur Reason : Fishes have a...

    Text Solution

    |

  20. Assertion : Myocardial infarction oftern results from a sudden decreas...

    Text Solution

    |