Transport of Oxygen: Haemoglobin transports oxygen molecule to all the body cells for cellular respiration .The haemoglobin pigment present in the blood gets attached to O2 molecules that are obtained from breathing and thus forms oxyhaemoglobin .This oxygenated blood is then distributed to all the body cells by the heart. After giving away O2 to the body cells, blood takes away CO2 which is the end product of cellular respiration and blood becomes de-oxygenated.
Transport of carbon dioxide: Since haemoglobin pigment has less affinity for CO2, CO2 is mainly transported in the dissolved form. This deoxygenated blood gives CO2 to lung alveoli and takes O2 in return.

Introduction:
Oxygen and carbon dioxide are two important gases that are transported in human beings. Oxygen is necessary for respiration, while carbon dioxide is a waste product of respiration. The transportation of these gases in the body is crucial for maintaining the proper functioning of the body.

Transport of Oxygen:
Oxygen is transported in the body by the respiratory system. The process of transportation of oxygen involves the following steps:

1. Inhalation: Oxygen enters the body through the nose or mouth during inhalation.

2. Diffusion: The oxygen travels from the lungs to the bloodstream through the process of diffusion.

3. Binding to Hemoglobin: Oxygen binds to hemoglobin, a protein found in red blood cells, and is transported to the body's tissues.

4. Cellular Respiration: Oxygen is used by the cells in the body for cellular respiration, where it is converted into energy.

Transport of Carbon Dioxide:
Carbon dioxide is transported in the body through the process of cellular respiration. The process of transportation of carbon dioxide involves the following steps:

1. Cellular Respiration: During cellular respiration, carbon dioxide is produced as a waste product.

2. Diffusion: Carbon dioxide diffuses from the cells to the bloodstream.

3. Binding to Hemoglobin: Some of the carbon dioxide binds to hemoglobin, while the rest is transported in the plasma.

4. Exhalation: Carbon dioxide is eliminated from the body through exhalation.

Conclusion:
In conclusion, oxygen and carbon dioxide are transported in human beings through the respiratory and circulatory systems. The proper functioning of these systems is crucial for maintaining the body's health and vitality.