Deficiency of Vitamin K will bring blood clotting difficult because it is essential for

Options

A. change of thromboplastin to thrombin
B. platelet
C. prothrombin synthesis
D. fibrinogen synthesis

Answer

**Step-by-Step Solution:**

1. **Understanding the Role of Vitamin K**: Vitamin K is a crucial nutrient that plays a significant role in the blood clotting process. It is essential for the synthesis of certain proteins required for blood coagulation.

2. **Identifying the Proteins Involved**: The proteins that are particularly important for blood clotting include prothrombin and other clotting factors. Prothrombin is a precursor to thrombin, which is necessary for the conversion of fibrinogen to fibrin, the protein that forms the mesh of a blood clot.

3. **Analyzing the Options**:
- **Option 1: Change of thromboplastin to thrombin**: This option is incorrect. Thromboplastin is not converted to thrombin; rather, it is involved in the activation of prothrombin to thrombin through the clotting cascade.
- **Option 2: Platelets**: This option is also incorrect. While platelets are essential for blood clotting, they do not rely on vitamin K for their function.
- **Option 3: Prothrombin Synthesis**: This is the correct answer. Vitamin K is essential for the synthesis of prothrombin in the liver. A deficiency in vitamin K leads to inadequate prothrombin levels, making blood clotting difficult.
- **Option 4: Fibrinogen Synthesis**: This option is incorrect. Fibrinogen is synthesized in the liver and does not directly depend on vitamin K.

4. **Conclusion**: The deficiency of Vitamin K leads to difficulties in blood clotting primarily because it is essential for the synthesis of prothrombin, which is necessary for the clotting process.

**Final Answer**: Vitamin K deficiency will bring blood clotting difficulties because it is essential for prothrombin synthesis.

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