Movement shown by macrophages is :

Options

A. Amoeboid
B. Ciliary
C. Flagellar
D. Muscular

Answer

**Step-by-Step Solution:**

1. **Understanding Macrophages**: Macrophages are a type of white blood cell (leucocyte) that play a crucial role in the immune system by engulfing and digesting cellular debris and pathogens.

2. **Identifying Movement Types**: The question asks about the type of movement exhibited by macrophages. The options provided are:
- A) Amoeboid movement
- B) Ciliary movement
- C) Flagellar movement
- D) Muscular movement

3. **Analyzing Each Option**:
- **Amoeboid Movement**: This is characterized by the formation of pseudopodia (temporary projections of the cell) that allow the cell to move and engulf particles.
- **Ciliary Movement**: This involves the use of cilia (small hair-like structures) to move the cell or move substances across the cell surface.
- **Flagellar Movement**: This involves the use of flagella (long whip-like structures) for movement.
- **Muscular Movement**: This refers to movement generated by muscle contractions.

4. **Correct Answer**: Given that macrophages are known to exhibit amoeboid movement through the formation of pseudopodia, the correct answer is **A) Amoeboid movement**.

5. **Explanation of Amoeboid Movement**: This movement occurs when the ectoplasm (the outer layer of the cytoplasm) contracts, allowing the endoplasm (the inner fluid of the cytoplasm) to flow into the pseudopodia, facilitating movement.

**Final Answer**: The movement shown by macrophages is **Amoeboid movement**.

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