Blood Coagulation
Easybiology
Which ion is essential for blood coagulation?
Select the correct option:
Solution
Incorrect! Answer:
Ca++
- Coagulation Cascade: Blood clotting involves a series of complex enzymatic reactions.
- Role of Calcium: Calcium ions (Ca2+) are required at multiple steps in the cascade, specifically for activating factors and the conversion of prothrombin to thrombin.
- Clinical Fact: Removing calcium from blood (e.g., using EDTA) prevents it from clotting.
- Conclusion: Ca2+ is the essential ion.
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About This Question
- Subject
- biology
- Chapter
- body fluids and circulation
- Topic
- blood coagulation
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Ca++
- Coagulation Cascade: Blood clotting involves a series of complex enzymatic reactions.
- Role of Calcium: Calcium ions (Ca2+) are required at multiple steps in the cascade, specifically for activating factors and the conversion of prothrombin to thrombin.
- Clinical Fact: Removing calcium from blood (e.g., using EDTA) prevents it from clotting.
- Conclusion: Ca2+ is the essential ion.
This easy difficulty biology question is from the chapter body fluids and circulation, covering the topic of blood coagulation. It appeared in the 2025 exam.
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