Clotting of blood involves which one among the following clotting proteins?
- AOption (a)
Pathogen
- BOption (b)
Fibrinogen
- COption (c)
Macrophage
- DOption (d)
Phagocytes
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Correct answer
Fibrinogen
Why this answer is correct
The correct answer is Fibrinogen
Concept:
- Blood clotting (also known as coagulation) is a critical process that prevents excessive bleeding when a blood vessel is injured.
- It involves a series of steps where clotting proteins in blood plasma work together to form a clot that seals the injured site.
- Fibrinogen is a key protein involved in this process. It is a soluble plasma protein that is converted into insoluble fibrin during the clotting cascade.
Key Points About Fibrinogen:
- Fibrinogen is produced by the liver and circulates in the blood in an inactive form.
- When an injury occurs, the enzyme thrombin is activated as part of the clotting cascade. Thrombin converts fibrinogen into fibrin.
- Fibrin forms a mesh-like structure that traps red blood cells and platelets, creating a stable blood clot.
- This clot acts as a temporary seal to prevent further blood loss and allows the vessel to heal.
- A deficiency or dysfunction in fibrinogen can lead to bleeding disorders, while excessive clotting can result in thrombosis.
Other Options:
- Pathogen: Pathogens are microorganisms such as bacteria, viruses, and fungi that cause diseases. They are not involved in the blood clotting process.
- Macrophage: Macrophages are a type of white blood cell involved in the immune response. They help by engulfing and digesting pathogens and cellular debris but play no role in blood clotting.
- Phagocytes: Phagocytes are immune cells that engulf and destroy pathogens and debris. While they are part of the immune system, they do not contribute to the clotting mechanism.