Brewer's yeast is used for ___A____ of malted cereats and fruit to produce ___B___ .

Options

A. A - Distillation, B - `CO_(2)`
B. A - Distillation, B - orgainc acid
C. A - Fermentation, B - CO
D. A - Fermentation, B - Alcohol

Answer

**Step-by-Step Solution:**

1. **Identify the Organism**: Brewer's yeast is scientifically known as *Saccharomyces cerevisiae*. This is a type of yeast commonly used in various fermentation processes.

2. **Understand the Process**: The primary function of Brewer's yeast in the context of malted cereals and fruits is fermentation. Fermentation is an anaerobic process where yeast converts sugars into alcohol and carbon dioxide.

3. **Application in Industry**: Brewer's yeast is predominantly used in the alcohol industry for the production of alcoholic beverages, such as beer. It is also used in the baking industry, but in this context, we are focusing on its role in alcohol production.

4. **Fill in the Blanks**:
- For the first blank (A), the process that Brewer's yeast is used for is "fermentation."
- For the second blank (B), the product of this fermentation process is "ethanol" (alcohol).

Thus, the complete statement is: "Brewer's yeast is used for **fermentation** of malted cereals and fruit to produce **ethanol**."

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