Haemoglobin is a/an ____ containing respiratory pigment

Options

A. iron
B. copper
C. zinc
D. iodine

Answer

**Step-by-Step Text Solution:**

1. **Understanding Hemoglobin**: Hemoglobin is a protein found in red blood cells (RBCs) that plays a crucial role in transporting oxygen throughout the body.

2. **Identifying the Component**: The question asks for the specific component that makes hemoglobin a respiratory pigment. Hemoglobin contains a metal that is essential for its function.

3. **Recognizing the Metal**: The metal present in hemoglobin is iron. This is important because iron is what allows hemoglobin to bind with oxygen.

4. **Defining Hemoglobin**: Since hemoglobin is a protein that contains iron, it is classified as an iron-containing respiratory pigment.

5. **Final Answer**: Therefore, the complete answer to the question is: "Haemoglobin is an iron containing respiratory pigment."

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