Name the enzymes and write the reactions involved in the preparation of ethanol from sucrose by fermentation.

Explanation

To prepare ethanol from sucrose through fermentation, we can break down the process into two main steps, each involving specific enzymes. Here’s a step-by-step solution:

### Step 1: Hydrolysis of Sucrose
1. **Enzyme Involved**: Invertase
2. **Reaction**:
\[ \text{C}_{12}\text{H}_{22}\text{O}_{11} \, (\text{sucrose}) + \text{H}_2\text{O} \xrightarrow{\text{invertase}} \text{C}_{6}\text{H}_{12}\text{O}_{6} \, (\text{glucose}) + \text{C}_{6}\text{H}_{12}\text{O}_{6} \, (\text{fructose}) \]
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