Carbonic anhydrase helps in the formation of

Options

A. carbamino-haemoglobin
B. oxyhaemoglobin
C. carbonic acid
D. All of the above

Answer

**Step-by-Step Solution:**

1. **Understanding Carbonic Anhydrase**: Carbonic anhydrase is an enzyme that plays a crucial role in the conversion of carbon dioxide (CO2) into carbonic acid (H2CO3).

2. **Identifying the Reaction**: The primary reaction facilitated by carbonic anhydrase is:
\[ \text{CO2} + \text{H2O} \rightleftharpoons \text{H2CO3} \]
This reaction shows that carbon dioxide reacts with water to form carbonic acid.

3. **Analyzing the Options**: The options provided are:
- A) Carbamino hemoglobin
- B) Oxy-hemoglobin
- C) Carbonic acid
- D) All of the above

4. **Evaluating Each Option**:
- **Carbamino hemoglobin**: This is formed when carbon dioxide binds to hemoglobin, but it is not directly related to the action of carbonic anhydrase.
- **Oxy-hemoglobin**: This refers to hemoglobin bound to oxygen, which is also not related to carbonic anhydrase.
- **Carbonic acid**: This is the direct product of the reaction catalyzed by carbonic anhydrase.
- **All of the above**: Since only carbonic acid is directly formed by the action of carbonic anhydrase, this option is incorrect.

5. **Conclusion**: Based on the analysis, the correct answer is that carbonic anhydrase helps in the formation of **carbonic acid**.

**Final Answer**: Carbonic acid

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