The work of Haemoglobin in body is

Options

A. Transportation of oxygen
B. Destruction of bacteria
C. Stopping Anemia
D. Use of iron

Explanation

**Step-by-Step Solution:**

1. **Definition of Hemoglobin**: Hemoglobin is a protein found in red blood cells (RBCs) that plays a crucial role in the transport of oxygen throughout the body. It consists of two parts: the globin (a protein) and the heme (a pigment containing iron).

2. **Composition of Hemoglobin**: The heme part of hemoglobin contains iron, which is essential for its function. However, it is important to note that hemoglobin itself does not use iron; rather, iron is a component that enables hemoglobin to perform its function.

3. **Role of Hemoglobin in Blood**: Hemoglobin is primarily located in red blood cells, which are one of the components of blood, alongside white blood cells (WBCs), platelets, and plasma.

4. **Oxygen Transport**: The main function of hemoglobin is to transport oxygen. When we inhale, oxygen enters the lungs and binds to hemoglobin molecules in the red blood cells, forming a compound known as oxyhemoglobin.

5. **Circulation of Oxyhemoglobin**: Once formed, oxyhemoglobin circulates through the bloodstream to various tissues and organs in the body. As it reaches tissues that require oxygen, it releases the oxygen for cellular respiration.

6. **Capacity of Hemoglobin**: Each molecule of hemoglobin can carry up to four molecules of oxygen (or eight atoms of oxygen), making it highly efficient in transporting oxygen.

7. **Conclusion**: In summary, the primary work of hemoglobin in the body is to facilitate the transport of oxygen from the lungs to the tissues and organs, where it is needed for energy production.

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