Macrophages and leucocytes exhibit

Options

A. ciliary movement
B. flagellar movement
C. amoeboid movement
D. gliding movement

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks about the type of movement exhibited by macrophages and leukocytes.

2. **Identifying the Cell Types:**
- Macrophages are a type of white blood cell (WBC) known for their ability to engulf and digest cellular debris and pathogens.
- Leukocytes, also known as white blood cells, are crucial components of the immune system that help the body fight infections.

3. **Movement Characteristics:**
- Macrophages and leukocytes are known to exhibit **amoeboid movement**. This type of movement is characterized by the extension of the cell membrane to form pseudopodia, allowing the cell to move and engulf pathogens.

4. **Role of Macrophages and Leukocytes:**
- Macrophages are phagocytic cells, meaning they can engulf and digest foreign particles such as bacteria and viruses. They contain lysosomes with hydrolytic enzymes that aid in digestion.
- Leukocytes, or white blood cells, are often referred to as the "soldiers" of the immune system. They are produced in the red bone marrow, spleen, thymus, and lymph nodes.

5. **Conclusion:**
Both macrophages and leukocytes exhibit **amoeboid movement**, which allows them to navigate through tissues and perform their immune functions effectively.

**Final Answer:**
Macrophages and leukocytes exhibit amoeboid movement.

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