maximum iron occurs in

Options

A. RBC
B. WBC
C. Bone cells
D. Protein.

Answer

To determine where maximum iron occurs among the given options (RBCs, WBCs, bone cells, and proteins), we can analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding RBCs (Red Blood Cells)**:
- RBCs, also known as erythrocytes, are primarily responsible for transporting oxygen throughout the body.
- They contain a protein called hemoglobin, which is crucial for this function.

**Hint**: Think about the role of RBCs in oxygen transport and what they contain.

2. **Analyzing Hemoglobin**:
- Hemoglobin is made up of two main components: the heme part and the globin part.
- The heme part contains iron, which is essential for binding oxygen.

**Hint**: Recall the structure of hemoglobin and its components.

3. **Considering WBCs (White Blood Cells)**:
- WBCs, or leukocytes, are involved in immune responses and do not contain significant amounts of iron compared to RBCs.
- They are primarily composed of various types of cells that help fight infections.

**Hint**: Think about the primary function of WBCs and their composition.

4. **Examining Bone Cells**:
- Bone cells, such as osteocytes, are involved in bone formation and maintenance.
- While bones do contain some iron, it is not in significant amounts compared to RBCs.

**Hint**: Consider the role of bone cells and their mineral composition.

5. **Looking at Proteins**:
- Proteins are made up of amino acids and can contain various elements, but they do not typically contain iron in significant amounts unless they are specific metalloproteins.
- Most proteins do not have iron as a major component.

**Hint**: Reflect on the general composition of proteins and their functions.

6. **Conclusion**:
- Among the options provided, RBCs contain the maximum amount of iron due to the presence of hemoglobin, which has iron in its heme component.
- Therefore, the correct answer is **RBCs**.

### Final Answer:
Maximum iron occurs in **RBCs (Red Blood Cells)**.