Which are not true cells in the blood?

Options

A. Platelets
B. Monecytes
C. Neutrophils
D. Basophils

Answer

### Step-by-Step Solution:

1. **Understanding Blood Composition**: Blood is classified as a fluid connective tissue, which consists of various components, including formed elements like white blood cells (WBCs), red blood cells (RBCs), and platelets.

2. **Identifying Blood Cells**: The main cellular components of blood include:
- **Red Blood Cells (RBCs)**: Responsible for transporting oxygen and carbon dioxide.
- **White Blood Cells (WBCs)**: Part of the immune system, helping to fight infections.
- **Platelets**: Involved in blood clotting.

3. **Defining True Cells**: True cells are defined as complete cells that have a nucleus and are capable of independent function.

4. **Analyzing Platelets**:
- Platelets, also known as thrombocytes, are not considered true cells because they do not have a nucleus.
- They are actually cytoplasmic fragments derived from larger cells called megakaryocytes in the bone marrow.

5. **Conclusion**: Among the components of blood, the only one that is not a true cell is the platelets. Therefore, the answer to the question is that **platelets are not true cells in the blood**.