Which of the following is not a granulocyte

Options

A. Lymphocyte
B. Basophil
C. Neutrophil
D. Eosinophil

Answer

To determine which of the following is not a granulocyte, we need to understand the definitions and characteristics of granulocytes and agranulocytes.

### Step-by-Step Solution:

1. **Define Granulocytes**: Granulocytes are a type of white blood cell that have granules in their cytoplasm. These granules can be stained and are visible under a microscope. Granulocytes play a crucial role in the immune response.

2. **Identify Types of Granulocytes**: There are three main types of granulocytes:
- **Neutrophils**: These are the most abundant type of granulocytes and are important for fighting infections.
- **Eosinophils**: These are involved in combating multicellular parasites and certain infections.
- **Basophils**: These are the least common type and are involved in allergic reactions and inflammatory responses.

3. **Define Agranulocytes**: Agranulocytes are white blood cells that do not have visible granules in their cytoplasm when stained. They include:
- **Lymphocytes**: These are crucial for the adaptive immune response.
- **Monocytes**: These differentiate into macrophages and dendritic cells to help in immune defense.

4. **Analyze the Options**: Now, let's look at the options provided:
- **Option 1: Lymphocyte** - This is an agranulocyte.
- **Option 2: Basophil** - This is a granulocyte.
- **Option 3: Neutrophil** - This is also a granulocyte.
- **Option 4: Eosinophil** - This is another granulocyte.

5. **Conclusion**: Since the question asks for the option that is not a granulocyte, the correct answer is **Option 1: Lymphocyte**.

### Final Answer:
**Lymphocyte** is not a granulocyte.

---