Which enzyme induces lysis of fibrinogen to fibrin during fibrinolysis?
A
Plasmin
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B
Thrombin
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C
Fibrin
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D
Trypsin
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Solution
The correct option is B Thrombin Blood-clotting proteins circulate in the blood plasma in an inactive form, poised to participate in blood coagulation upon tissue injury. Blood-clotting proteins generate thrombin, an enzyme that converts fibrinogen to fibrin, and a reaction that leads to the formation of a fibrin clot.