The clotting of blood is an important function attributed in human blood to: 
1. Erythrocytes 
2. Leukocytes 
3. Thrombocytes 
4. Neutrophils
Subtopic:  Blood: Blood Clotting |
 98%
From NCERT
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To prevent eryhtroblastosis fetalis in future pregnancies:

1. Anti-Rh Immunoglobulins must be given to Rh –ve mothers at the time of each delivery
2. Anti-Rh Immunoglobulins must be given to new born at the time of each delivery
3. Rh Antigens must be given to new born at the time of each delivery
4. Anti Antigens must be given to Rh –ve mothers at the time of each delivery
Subtopic:  Blood: Blood Group (A,B,O) | Blood: Blood Group | Blood: Blood Clotting |
 86%
From NCERT
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The enzyme that activates fibrinogens in the blood is:

1. Thromboplastin 2. Thrombokinase
3. Thrombin 4. Plasmin
Subtopic:  Blood: Blood Clotting |
 74%
From NCERT
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Which of the following can be called as a ‘cascade’ process?

1. Micturition reflex
2. Formation of cross bridges in skeletal muscle contraction
3. Coagulation of blood
4. Regulation of respiration
Subtopic:  Blood: Blood Clotting |
 93%
From NCERT
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Which of the following ions is vital for coagulation of blood?

 
1. Na+ 2. Ca++
3. K+ 4. H+
Subtopic:  Blood: Blood Clotting |
 83%
From NCERT
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