- 1(current)
Q. No.All the following statements regarding coagulation of blood are correct except:
1. Prothrombinase catalyzes the breakdown of prothrombin to thrombin.
2. Thrombin catalyzes the conversion of fibrinogen to fibrin.
3. Antithrombin inactivates thrombin.
4. Heparin causes fibrinolysis.
Given below are four statements (a-d) regarding human blood circulatory system:
| (a) | Arteries are thick-walled and have narrow lumen as compared to veins. |
| (b) | Angina is acute chest pain when the blood circulation to the brain is reduced. |
| (c) | Persons with blood group AB can donate blood to any person with any blood group under the ABO system. |
| (d) | Calcium ions play a very important role in blood clotting. |
Which two of the above statements are correct?
| 1. (a) and (b) | 2. (b) and (c) |
| 3. (c) and (d) | 4. (a) and (d) |
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Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?
| 1. Epinephrine | 2. Thrombokinase |
| 3. Thrombin | 4. Renin |
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- 1(current)
Q. No.
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