The enzymes that convert pyruvic acid into ethanol are

Options

A. Carboxylase
B. Dehydrogenase
C. Decarboxylase and dehydrogenase
D. Oxidases and decarboxylase

Answer

To answer the question about the enzymes that convert pyruvic acid into ethanol, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Pyruvic Acid Conversion**: Pyruvic acid can undergo fermentation, especially in anaerobic conditions (absence of oxygen). This process leads to the formation of ethanol.

2. **Identifying the Initial Step**: The first step in the conversion of pyruvic acid to ethanol is its conversion to acetaldehyde. This step is facilitated by the enzyme called decarboxylase.

3. **Conversion to Ethanol**: After the formation of acetaldehyde, the next step is the reduction of acetaldehyde to ethanol. This reaction is catalyzed by the enzyme dehydrogenase.

4. **Conclusion**: Therefore, the two enzymes involved in the conversion of pyruvic acid to ethanol are:
- **Decarboxylase**: Converts pyruvic acid to acetaldehyde.
- **Dehydrogenase**: Converts acetaldehyde to ethanol.

5. **Final Answer**: The enzymes that convert pyruvic acid into ethanol are decarboxylase and dehydrogenase.