The function of Haemoglobin is :

Options

A. To transport `O_(2)` in the body
B. To transport `CO_(2)` in the body
C. Both (A) and (B)
D. None of the above.

Answer

### Step-by-Step Text Solution:

1. **Understanding Hemoglobin**: Hemoglobin is a protein molecule found in red blood cells (RBCs). Its primary role is to facilitate the transport of gases in the bloodstream.

2. **Transport of Oxygen**: The primary function of hemoglobin is to bind with oxygen (O2) in the lungs. Once oxygen is bound to hemoglobin, it is transported from the lungs to various tissues and organs throughout the body.

3. **Transport of Carbon Dioxide**: While hemoglobin can also carry a small amount of carbon dioxide (CO2) from the tissues back to the lungs, the majority of carbon dioxide is transported in the blood in a dissolved form or as bicarbonate ions. Therefore, hemoglobin's role in transporting carbon dioxide is not as significant as its role in transporting oxygen.

4. **Conclusion**: Given the functions of hemoglobin, the correct answer to the question about its function is that it primarily serves to transport oxygen in the body.

5. **Final Answer**: The function of hemoglobin is to transport oxygen in the body.