The members of which group are commonly known as sac fungi?

Options

A. Phycomycetes
B. Deuteromycetes
C. Basidomycetes
D. Ascomycetes

Answer

**Step-by-Step Solution:**

1. **Identify the Kingdom**: The question pertains to the classification of fungi, specifically within the Kingdom Fungi.

2. **Understand the Groups of Fungi**: The major groups of fungi include:
- Phycomycetes (also known as lower fungi)
- Ascomycetes (sac fungi)
- Basidiomycetes (club fungi)
- Deuteromycetes (imperfect fungi)

3. **Focus on the Term "Sac Fungi"**: The term "sac fungi" refers specifically to a group characterized by their reproductive structures.

4. **Identify the Correct Group**: Among the groups listed, the Ascomycetes are known as sac fungi due to the presence of a sac-like structure called the "ascus," which is involved in sexual reproduction.

5. **Additional Information**: Ascomycetes include a wide variety of fungi, numbering over 30,000 species, including yeasts, molds, and edible fungi like truffles and morels.

6. **Conclusion**: Thus, the members of the group commonly known as sac fungi are the Ascomycetes.

**Final Answer**: Ascomycetes

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