Carbonic anhydrase enzyme exists

Options

A. mainly in plasma
B. only in plasma
C. mainly in RBC
D. only in RBC

Answer

To solve the question about where carbonic anhydrase enzyme exists, we can follow these steps:

### Step 1: Understand the Question
The question asks for the location of the carbonic anhydrase enzyme. We need to identify where this enzyme is primarily found in the body.

**Hint:** Focus on the biological roles and locations of enzymes in the human body.

### Step 2: Identify the Locations of Carbonic Anhydrase
Carbonic anhydrase is known to exist in various parts of the body. However, it is particularly abundant in red blood cells (RBCs).

**Hint:** Consider the functions of red blood cells and their role in gas exchange.

### Step 3: Analyze the Function of Carbonic Anhydrase
The primary function of carbonic anhydrase is to catalyze the conversion of carbon dioxide and water into carbonic acid. It also facilitates the dissociation of carbonic acid into bicarbonate ions (HCO3-) and protons (H+).

**Hint:** Think about the physiological processes involving carbon dioxide transport and pH regulation.

### Step 4: Compare Other Potential Locations
While carbonic anhydrase is present in minute quantities in plasma, its highest concentration is found in red blood cells. This is crucial for the enzyme's role in maintaining acid-base balance and facilitating gas exchange.

**Hint:** Evaluate the significance of enzyme concentration in relation to its function.

### Step 5: Conclusion
Based on the information gathered, we conclude that carbonic anhydrase enzyme mainly exists in red blood cells (RBCs). Therefore, the correct answer to the question is that carbonic anhydrase exists primarily in RBCs.

**Final Answer:** Carbonic anhydrase enzyme mainly exists in red blood cells (RBCs).

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