During blood coagulation, the conversion of inactive fibrinogen to fibrin threads and the conversion of prothrombin to thrombin are catalysed by:
Both the reactions are catalysed by thrombin
Both the reactions are catalysed by thrombokinase
- Thrombin and thrombokinase respectively
Thrombokinase and thrombin respectively
___are needed for clotting or coagulation of blood.
- Amino acids
Q. Which of these converts soluble fibrinogen into insoluble fibrin?
Q. Sort the following clotting factors from top to bottom starting from the factor coming after thromboplastin:
Q. Blood coagulation is initiated by
Q. ________ are the blood cells, whose decrease in number can affect the clotting of blood.
- Both a and b
Q. Which of the following statements is/are correct?
- Clotting factors are activated by the damaged tissue outside the blood vessel only
- Prothrombin is the inactive form of thrombin that is present in the plasma
- The platelets outside the damaged blood vessel also activate a cascade of clotting factors
- All of the above
Q. Vitamin K during blood coagulation is required for
- change of fibrinogen to fibrin
- change of prothrombin to thrombin
- formation of prothrombin
- all of the above
Q. Which ion is required for the coagulation of blood?
Q. The process to stop the flow of blood is called