Write the enzymes which catalyse the conversion of pyruvic acid to `CO_(2)` and enthanol

Answer

To answer the question regarding the enzymes that catalyze the conversion of pyruvic acid to carbon dioxide and ethanol, we can break down the process into two main steps:

### Step-by-Step Solution:

1. **Understanding Pyruvic Acid**:
- Pyruvic acid (CH₃COOH) is a 3-carbon compound that is a key intermediate in several metabolic pathways, including fermentation.

2. **First Step - Decarboxylation**:
- In the first step, two molecules of pyruvic acid undergo decarboxylation, which means they lose a carbon dioxide molecule (CO₂).
- This reaction converts pyruvic acid into acetaldehyde (CH₃CHO).
- The enzyme responsible for this reaction is **decarboxylase**.

3. **Second Step - Reduction to Ethanol**:
- In the second step, the acetaldehyde produced in the first step is then reduced to ethanol (C₂H₅OH).
- This reduction involves the conversion of NADH₂ to NAD⁺.
- The enzyme that catalyzes this reaction is **alcohol dehydrogenase**.

4. **Final Summary**:
- Therefore, the two enzymes involved in the conversion of pyruvic acid to carbon dioxide and ethanol are:
- **Decarboxylase** (for the conversion of pyruvic acid to acetaldehyde)
- **Alcohol dehydrogenase** (for the conversion of acetaldehyde to ethanol)

### Final Answer:
The enzymes are:
1. Decarboxylase
2. Alcohol dehydrogenase

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