Pyruvate `rarrC_(2)H_(5)OH+CO_(2)`
The above reaction needs 2 enzymes named as -

Options

A. Pyruvate decarboxylase and alcohol dehydrogenase
B. Pyruvate decarboxylase and enolase
C. Pyruvate decarboxylase and pyruvate kinase
D. Pyruvate carboxylase + Aldolase

Answer

To answer the question regarding the enzymes involved in the conversion of pyruvate to ethanol and carbon dioxide, we can break down the process step by step:

### Step-by-Step Solution:

1. **Understanding the Reaction**: The reaction given is the conversion of pyruvate (C3H4O3) into ethanol (C2H5OH) and carbon dioxide (CO2). This process occurs under anaerobic conditions, typically in yeast, and is known as alcoholic fermentation.

2. **Identifying the Conditions**: The reaction occurs in the absence of oxygen (anaerobic conditions), which is crucial for fermentation processes.

3. **Recognizing the Source of Pyruvate**: Pyruvate is produced from glycolysis, where glucose is broken down into two molecules of pyruvate.

4. **Enzymatic Steps**:
- **Decarboxylation**: The first step involves the removal of a carboxyl group from pyruvate, which releases CO2. This reaction is catalyzed by the enzyme **pyruvate decarboxylase**.
- **Reduction to Ethanol**: The second step involves the reduction of the remaining two-carbon compound (acetaldehyde) to ethanol. This step is catalyzed by the enzyme **alcohol dehydrogenase**.

5. **Final Answer**: The two enzymes required for the conversion of pyruvate to ethanol and carbon dioxide are **pyruvate decarboxylase** and **alcohol dehydrogenase**.