Calcium acts as ---in blood clotting-
A. Buffer
B. Catalyst
C. Acidic medium
D. Basic medium
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Answer:
calcium act as catalyst
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Calcium acts as a (b) Catalyst in blood clotting.
- Calcium ions (Ca2+) play a major role in the tight regulation of the coagulation cascade that is paramount in the maintenance of hemostasis.
- Other than platelet activation, calcium ions are responsible for the complete activation of several coagulation factors.
- FXIII-A is the only molecule activated by a combination of calcium-binding and proteolytic thrombin cleavage of an N–terminal 37-amino acid region.
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