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Question

Reason
Platelet factors are responsible for activation of platelets which forms plug like layer stopping the blood flow.
Assertion
Platelets are responsible for clotting of blood when injured.

A
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
B
Both Assertion and Reason are incorrect
C
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
D
Assertion is correct but Reason is incorrect
Solution
Verified by Toppr

Correct option is A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Platelets are responsible for clotting of blood when injured. These are activated by factors which forms thin plug like layer resulting in stopping the blood flow i.e. clotting takes place.
Both assertion and reason are correct and reason explains the assertion.
Option A is correct.

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Similar Questions
Q1
Reason
Platelet factors are responsible for activation of platelets which forms plug like layer stopping the blood flow.
Assertion
Platelets are responsible for clotting of blood when injured.
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Q2
Which of these is responsible for blood clotting?

(a) red blood cells
(b) white blood cells
(c) haemoglobin
(d) platelets
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Q3
Which are III and VII factors responsible for blood clotting?
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Q4
Which of the following is / are wrong about blood clotting?
A. Fibrinogen Thromboplastin−−−−−−−−Thrombin
B. Injured tissue + blood Platelets Release thromboplastin
C. Prothrombin Thrombin−−−−− fibrin
D. Fibrin + Red Blood corpuscles Blood clot
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Q5
____________ are responsible for clotting of blood.
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