Fermentation is

Options

A. Incomplete oxidation
B. Anaerobic respiration
C. Excretory process
D. None of the above

Answer

**Step-by-Step Solution:**

1. **Understanding Fermentation**: Fermentation is a metabolic process that converts glucose into simpler compounds, primarily in the absence of oxygen.

2. **Products of Fermentation**: During fermentation, glucose is broken down into two main products: pyruvic acid (an acid) and alcohol (ethanol). This process is crucial in various applications, such as baking and brewing.

3. **Anaerobic Process**: Fermentation occurs without oxygen, which classifies it as an anaerobic process. This means that it does not require oxygen to proceed, differentiating it from aerobic respiration.

4. **Identifying the Correct Option**: Given the options:
- A) Incomplete oxidation: This is incorrect as fermentation is not just incomplete oxidation.
- B) Anaerobic respiration: This is correct because fermentation is a type of anaerobic respiration.
- C) Excretory process: This is incorrect as fermentation does not relate to excretion.
- D) None of the above: This is also incorrect since option B is correct.

5. **Conclusion**: The correct answer to the question "Fermentation is" is option B) Anaerobic respiration.

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