Fastest enzyme is ________ and its acts upon __________

Options

A. Carbonic anhydrase and `H_(2)CO_(3)`
B. Alcohol dehydrogenase and `C_(2)H_(5)OH`
C. Catalse and `H_(2)O_(2)`
D. Kinase & glucose

Answer

**Step-by-Step Solution:**

1. **Identify the Question:** The question asks for the fastest enzyme and the substance it acts upon.

2. **Understanding Enzymes:** Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed in the process.

3. **Review the Options:** The options given are:
- Carbonic anhydrase and H2CO3
- Alcohol dehydrogenase and C2H5OH
- Catalase and H2O2
- Kinase and glucose

4. **Determine the Fastest Enzyme:** Among the options, carbonic anhydrase is known to be the fastest enzyme in the human body. It is found in red blood cells (RBCs) and facilitates rapid reactions.

5. **Identify the Substrate:** Carbonic anhydrase acts upon carbon dioxide (CO2) and water (H2O) to form carbonic acid (H2CO3).

6. **Final Answer:** Therefore, the fastest enzyme is **carbonic anhydrase** and it acts upon **H2CO3** (carbonic acid).

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