Which blood protein play a major role in osmotic balance ?

Options

A. Albumin
B. Globulin
C. Fibrinogen
D. All of these

Answer

**Step-by-Step Solution:**

1. **Identify the Blood Proteins**: The question asks about blood proteins that play a role in osmotic balance. The main proteins to consider are albumin, globulin, and fibrinogen.

2. **Understand the Role of Albumin**: Albumin is a type of globular protein that is crucial for maintaining osmotic pressure in the blood. It is the most abundant protein in mammalian blood and is produced by the liver.

3. **Mechanism of Osmotic Balance**: Albumin helps to regulate the distribution of body fluids between blood vessels and tissues. It prevents excessive fluid from leaking out of the blood vessels into the surrounding tissues.

4. **Consequences of Low Albumin Levels**: If albumin levels are low, it can lead to a condition where high pressure in blood vessels causes too much fluid to escape into tissues, which can result in edema (swelling).

5. **Role of Other Proteins**: While globulin and fibrinogen are important proteins in the blood, they primarily play roles in immune response and blood clotting, respectively, rather than directly in osmotic balance.

6. **Conclusion**: Based on the information, the blood protein that plays a major role in osmotic balance is albumin.

**Final Answer**: Albumin is the blood protein that plays a major role in osmotic balance.

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