Baker's yeast is :

Options

A. S. cerevisae
B. S. ludwingii
C. S. octosporus
D. Schizosaccharomyces

Answer

**Step-by-Step Solution:**

1. **Identify the Classification of Yeast:**
- Yeast belongs to the kingdom Fungi. It is important to note that while it is a fungus, it is primarily unicellular.

2. **Understand the Reproduction Method:**
- Yeast reproduces by a process called budding, which is a form of asexual reproduction.

3. **Recognize the Importance of Yeast:**
- Yeast plays a crucial role in both the bakery and brewery industries. It is responsible for fermentation, which is essential for producing bread and alcoholic beverages.

4. **Analyze the Options Given:**
- The options provided are:
- A) Sesosaccharomyces
- B) Saccharomyces actosporous
- C) Saccharomyces Ludwigii
- D) Saccharomyces cerevisiae

5. **Evaluate Each Option:**
- A) Sesosaccharomyces: This is related to yeast but is used for reducing acidity in wines.
- B) Saccharomyces actosporous: This is a close relative of another yeast but does not have a significant function in the bakery or brewery industries.
- C) Saccharomyces Ludwigii: This is a contaminating and pathogenic form that affects wine.
- D) Saccharomyces cerevisiae: This is the most important yeast used in both the bakery and brewery industries.

6. **Select the Correct Answer:**
- The correct answer is **D) Saccharomyces cerevisiae**, as it is the primary yeast used in baking and brewing.

**Final Answer:**
Baker's yeast is **Saccharomyces cerevisiae**.

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