Exchange of bicarbonates and chloride ions between RBC and plasma is called `:-`

Options

A. Chloride shift.
B. Bohr's effect
C. Haldane's effect.
D. Intra cellular respiration

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:** The question asks about the exchange of bicarbonate and chloride ions between red blood cells (RBCs) and plasma. This is a physiological process that occurs in the blood.

2. **Identifying the Process:** The process in question involves the movement of bicarbonate ions (HCO3-) out of the RBCs into the plasma and the simultaneous movement of chloride ions (Cl-) into the RBCs. This exchange is crucial for maintaining the acid-base balance in the blood.

3. **Recognizing the Terminology:** This specific exchange is known as the "chloride shift." It is also referred to as the Hamburger phenomenon.

4. **Explaining the Mechanism:**
- When carbon dioxide (CO2) concentration increases in the blood, it leads to the formation of carbonic acid (H2CO3) in the RBCs.
- Carbonic acid then dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3-).
- The increased concentration of bicarbonate ions in the RBCs causes them to move out into the plasma.
- To maintain electrical neutrality, chloride ions move into the RBCs from the plasma, resulting in the exchange of these ions.

5. **Conclusion:** Therefore, the exchange of bicarbonate and chloride ions between RBC and plasma is called the "chloride shift."

**Final Answer:** The exchange of bicarbonates and chloride ions between RBC and plasma is called **Chloride Shift**.

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