Formation of a clot 0.0 / 5 ? BiologyHuman, animal and plant behaviourASEdexcel Created by: Elisabeth MontagueCreated on: 25-04-19 10:39 Contact between the tissue and what component causes that component to break open? Platelets 1 of 7 What are the 2 substances broken platelets release? Serotonin and Thromboplastin 2 of 7 How does serotonin cut off the blood supply to the damaged area? It causes the smooth muscle of the blood vessel to contract 3 of 7 What does the enzyme thromboplastin catalyse? The conversion of prothrombin into the enzyme thrombin 4 of 7 What does thrombin convert fibrinogen into? Insoluble fibrin 5 of 7 A clot is formed by more platelets and blood getting trapped in the what? The fibrin mesh 6 of 7 How is a scab formed? Proteins in the structure of platelets contract, making the clot tighter and tougher. 7 of 7
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