Production of alcohol by Yeast fermentation is …. Process

Options

A. Anaerobic
B. Aerobic
C. Light dependent
D. Both A and C.

Answer

**Step-by-Step Solution:**

1. **Understanding the Process of Fermentation**:
- Fermentation is a metabolic process that converts sugar to acids, gases, or alcohol in the absence of oxygen.

2. **Identifying the Organism**:
- Yeast is the microorganism responsible for fermentation. It is commonly used in the production of alcohol.

3. **The Role of Glucose**:
- The fermentation process begins with glucose, which is a simple sugar. Yeast utilizes glucose as its primary energy source.

4. **Glycolysis**:
- The first step in the fermentation process is glycolysis, where glucose is broken down into pyruvate. This step occurs in the cytoplasm of the yeast cells.

5. **Conversion of Pyruvate**:
- After glycolysis, the pyruvate is further converted into ethanol (alcohol) and carbon dioxide. This conversion is facilitated by enzymes present in yeast, particularly zymase.

6. **Anaerobic Conditions**:
- The entire fermentation process occurs in the absence of oxygen, which is why it is classified as an anaerobic process.

7. **Conclusion**:
- Therefore, the production of alcohol by yeast fermentation is an anaerobic process.

**Final Answer**: The production of alcohol by yeast fermentation is an **anaerobic process**.

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