Transport of oxygen by RBCs

Red Blood Cells (RBCs) are responsible for transporting oxygen to different parts of the body. They are the most abundant cells in the body and contain a protein called hemoglobin which binds to oxygen and carries it to the tissues where it is needed.

How do RBCs transport oxygen?

- Hemoglobin in RBCs binds to oxygen in the lungs where the concentration of oxygen is high.
- The oxygenated blood is then pumped by the heart to different parts of the body.
- As the blood reaches the tissues where oxygen is needed, the concentration of oxygen decreases and hemoglobin releases the oxygen it is carrying.
- The deoxygenated blood returns to the lungs where the process starts again.

Why are RBCs important for oxygen transport?

- RBCs have a unique shape which allows them to squeeze through small blood vessels and reach even the smallest capillaries in the body.
- RBCs contain a large amount of hemoglobin which can bind to a lot of oxygen and transport it efficiently.
- RBCs have a lifespan of around 120 days and are constantly replenished by the bone marrow.

Conclusion

In summary, RBCs are responsible for transporting oxygen to different parts of the body. They do this by binding to oxygen in the lungs and carrying it to the tissues where it is needed. RBCs are important for their unique shape, large amount of hemoglobin, and constant replenishment by the bone marrow.

Transport of Oxygen by RBC

Red blood cells (RBCs) are specialized cells that transport oxygen from the lungs to different parts of the body. They are also known as erythrocytes and are the most abundant cells in the blood. The following points explain how RBCs transport oxygen:

Hemoglobin: RBCs contain a protein called hemoglobin, which binds to oxygen molecules and carries them from the lungs to the tissues.

Iron: Hemoglobin contains iron, which is essential for oxygen transport. Iron binds to oxygen and helps in its transportation.

Capillaries: RBCs are small enough to pass through the smallest blood vessels called capillaries. Capillaries are present in all tissues and organs of the body, and they allow oxygen to diffuse into the cells.

Circulatory System: RBCs are carried by the circulatory system, which includes the heart, blood vessels, and blood. The heart pumps blood to the lungs, where it picks up oxygen and releases carbon dioxide. The oxygen-rich blood is then carried to the tissues by the blood vessels.

Conclusion:

Hence, it is clear that RBCs are the only cells that transport oxygen to different parts of the body. WBCs and platelets have other functions related to immunity and blood clotting, respectively.