Bacterial and eukaryotic flagella have the same structure made of microtubules.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The statement claims that bacterial and eukaryotic flagella have the same structure made of microtubules. We need to determine if this statement is true or false.

2. **Identifying Flagella Types**: There are two types of flagella to consider:
- **Bacterial Flagella** (Prokaryotic)
- **Eukaryotic Flagella**

3. **Analyzing Bacterial Flagella**:
- Bacterial flagella are primarily made of protein subunits (specifically, a protein called flagellin).
- They have a simple structure consisting of a filament, a hook, and a basal body.
- The movement of bacterial flagella is characterized by a spinning motion.

4. **Analyzing Eukaryotic Flagella**:
- Eukaryotic flagella are made of microtubules, which are protein structures composed of tubulin.
- They exhibit a complex structure characterized by a "9 + 2" arrangement of microtubules (9 doublets in the outer ring and 2 central microtubules).
- The movement of eukaryotic flagella is wave-like or whip-like.

5. **Comparing Structures**:
- Bacterial flagella do not contain microtubules; they are made of proteins.
- Eukaryotic flagella contain microtubules and have a distinct structural arrangement.

6. **Conclusion**: Since the structures of bacterial and eukaryotic flagella are fundamentally different, the statement is **false**.

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