Mark a cell which does not exhibit phagocytoyic activity among the following

Options

A. Monocytes
B. Neutrophil
C. Basophil
D. Macrophage

Answer

To solve the question "Mark a cell which does not exhibit phagocytic activity among the following," we will analyze each of the provided cell types to determine their phagocytic capabilities.

### Step-by-Step Solution:

1. **Understanding Phagocytosis**:
- Phagocytosis is the process by which a cell engulfs large particles, such as pathogens or debris, using its plasma membrane. Cells that perform this function are known as phagocytes.

2. **Analyzing the Options**:
- **Option 1: Monocyte**:
- Monocytes are a type of white blood cell that can differentiate into macrophages and dendritic cells. They are known to perform phagocytosis by engulfing pathogens and debris.
- **Conclusion**: Monocytes exhibit phagocytic activity.

- **Option 2: Neutrophil**:
- Neutrophils are another type of white blood cell and are one of the first responders to sites of infection. They are highly effective phagocytes, capable of ingesting and destroying microorganisms.
- **Conclusion**: Neutrophils exhibit phagocytic activity.

- **Option 3: Eosinophil**:
- Eosinophils are primarily involved in combating multicellular parasites and certain infections. They do not typically engage in phagocytosis like monocytes and neutrophils. Instead, they release cytotoxic granules to attack larger parasites.
- **Conclusion**: Eosinophils do not exhibit significant phagocytic activity.

- **Option 4: Macrophage**:
- Macrophages are derived from monocytes and are well-known for their phagocytic abilities. They play a crucial role in the immune response by engulfing and digesting pathogens and dead cells.
- **Conclusion**: Macrophages exhibit phagocytic activity.

3. **Final Answer**:
- Based on the analysis, the cell that does not exhibit phagocytic activity is **Eosinophil** (Option 3).