Alcoholic fermentation takes place in the presence of

Options

A. Maltase
B. Zymase
C. Amylase
D. Invertase

Answer

**Step-by-Step Text Solution:**

1. **Understanding Alcoholic Fermentation**: Alcoholic fermentation is a biochemical process where sugars are converted into ethanol and carbon dioxide. This process is primarily carried out by yeast.

2. **Role of Yeast**: Yeast is a microorganism that plays a crucial role in alcoholic fermentation. It contains specific enzymes that facilitate the conversion of sugars.

3. **Key Enzyme - Zymase**: The enzyme responsible for alcoholic fermentation in yeast is called zymase. This enzyme catalyzes the breakdown of sugars into ethanol and carbon dioxide.

4. **Presence of Zymase**: Zymase is naturally produced by yeast cells. It is present in all species of yeast, although the amount may vary among different species.

5. **Conclusion**: Therefore, alcoholic fermentation takes place in the presence of the enzyme zymase, which is found in yeast.

**Final Answer**: Alcoholic fermentation takes place in the presence of the enzyme zymase.

---