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Assertion - Platelets repair dammaged en...

Assertion `-` Platelets repair dammaged endothelium of blood vessels.
Reason `-` Platelets secrete serotonin which is a vaso constrictor

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
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MOTION-BODY FLUIDS AND CIRCULATION-EXERCISE -4 AIIMS | Assertion & Reason Questions
  1. Assertion: Platelets play an important role in blood clotting. Reaso...

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  2. Assertion :- Blood group 'O' is a universal donar blood. Reason :- ...

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  3. Assertion - Platelets repair dammaged endothelium of blood vessels. ...

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  4. Assertion :- Rh factor is considered in blood transfusion. Reason :...

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  5. Assertion: Heparin is an anticoagulant found in mammals. Reason: He...

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  6. Assertion : Deficiency of vitamin B(12) and folic acid can cause anaem...

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  7. Assertion : Heparin prevent coagulation of blood in blood vessels. Re...

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

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

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

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

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

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

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

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

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

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

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

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

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

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