The core of the cilium (or) the flagellum is called

Options

A. Exoneme
B. Axoneme
C. Endoneme
D. All

Answer

To answer the question "The core of the cilium (or) the flagellum is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Cilia and Flagella**: Cilia and flagella are hair-like structures that protrude from the surface of many eukaryotic cells. They are involved in movement and sensory functions.

2. **Identifying the Structure**: Both cilia and flagella have a specific internal structure. They are made up of microtubules, which are protein filaments that provide structural support and facilitate movement.

3. **Core Structure**: The central part of cilia and flagella is referred to as the "axoneme." The axoneme consists of a specific arrangement of microtubules, typically in a "9+2" arrangement (nine doublet microtubules surrounding two central microtubules).

4. **Conclusion**: Therefore, the core of the cilium or flagellum is called the "axoneme."

### Final Answer:
The core of the cilium (or) the flagellum is called the **axoneme**.

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