Blood Platelets


 
 
Concept Explanation
 

Blood Platelets

Blood Clotting by Platelets:

Platelet cells are present in our blood and they circulate all around the body through it. Whenever there is bleeding these platelets act as a plug to stop it. The clot, which forms at the point of wound, is a microscopic network of insoluble fibrous protein. The cells have granules but no nucleus.

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Sample Questions
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Question : 1

Which of the following are correct ?

(a) Platelet cells are present in our blood and they circulate all around the body through it.

(b) The clot, which forms at the point of wound, is a microscopic network of insoluble fibrous protein.

Right Option : C
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Question : 2

Platelet cells are present in our _________________ and they circulate all around the body through it.

Right Option : B
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Question : 3

  There are about ________________________ platelets per microlitre of blood.

Right Option : C
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Explanation
 
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