How the transport of `O_(2)` and `CO_(2)` by blood happens?

Options

A. (a) with the help of RBC and WBC
B. (b) with the help of WBC and blood serum
C. (c) with the help of platelets and plasma
D. (d) with the help of RBC the blood plasma

Answer

### Step-by-Step Solution:

1. **Understanding Oxygen Transport**:
- Oxygen (O₂) is primarily transported in the blood. About 98% of oxygen is carried by hemoglobin, which is found in red blood cells (RBCs). Hemoglobin binds with oxygen to form oxyhemoglobin.
- The remaining 2% of oxygen is dissolved in the plasma (the liquid component of blood).

2. **Understanding Carbon Dioxide Transport**:
- Carbon dioxide (CO₂) is transported in the blood in three main forms:
- Approximately 75% of CO₂ is converted into bicarbonate ions (HCO₃⁻) and transported in the plasma.
- About 25% of CO₂ binds with hemoglobin to form carbaminohemoglobin, which is also carried in the red blood cells.

3. **Identifying the Carriers**:
- The primary carriers for oxygen are RBCs (via hemoglobin) and plasma (for the small percentage of dissolved oxygen).
- For carbon dioxide, the carriers are also RBCs (for carbaminohemoglobin) and plasma (for bicarbonate ions).

4. **Conclusion**:
- The correct answer to the question of how O₂ and CO₂ are transported by blood is that both red blood cells (RBCs) and plasma play significant roles in this transport.

### Final Answer:
The transport of O₂ and CO₂ by blood occurs with the help of red blood cells (RBCs) and blood plasma.

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