Fungi are filamentous except

Options

A. Yeast
B. Mould
C. Puff-balls
D. Mushrooms

Answer

To solve the question "Fungi are filamentous except," we need to identify which of the given options does not fit the general characteristic of fungi being filamentous.

### Step-by-Step Solution:

1. **Understand the Characteristics of Fungi**:
- Fungi are primarily eukaryotic organisms.
- They are mostly multicellular and are known for their filamentous structure, which consists of thread-like structures called hyphae.

2. **Analyze the Options**:
- The options provided are:
- Yeast
- Mold
- Puffballs
- Mushrooms

3. **Identify Filamentous Fungi**:
- Mold, puffballs, and mushrooms are all types of fungi that exhibit a filamentous structure.
- Mold is composed of hyphae, puffballs have a filamentous stage, and mushrooms are the fruiting bodies of filamentous fungi.

4. **Identify the Exception**:
- Yeast is a type of fungus that is generally unicellular and does not form the filamentous structure typical of other fungi.
- Therefore, yeast is the only option that is not filamentous.

5. **Conclusion**:
- The correct answer to the question is **Yeast**.

### Final Answer:
Fungi are filamentous except **Yeast**.