Macrophages and leucocytes exhibit

Options

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

Explanation

**Step-by-Step Solution:**

1. **Identify the Cells in Question**: The question refers to macrophages and leukocytes, which are types of white blood cells involved in the immune response.

2. **Understand the Movement of These Cells**: Macrophages and leukocytes are known for their ability to move through tissues. This movement is crucial for their function in the immune system.

3. **Define the Type of Movement**: The type of movement exhibited by macrophages and leukocytes is called "amoeboid movement." This is characterized by the ability of these cells to change shape and move by extending parts of their cytoplasm (pseudopodia).

4. **Mechanism of Movement**: Macrophages and leukocytes can squeeze through the thin walls of blood vessels to reach interstitial fluid and tissues. This is facilitated by their flexible cell membranes and cytoskeletal components.

5. **Differentiate from Other Movements**: It's important to note that macrophages and leukocytes do not exhibit ciliary movement, flagellar movement, or gliding movement, which are associated with other types of cells.

6. **Conclusion**: Therefore, the correct answer to the question is that macrophages and leukocytes exhibit amoeboid movement.

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

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