How is oxygen and carbon dioxide transported in human beings?
Answers
Answer:
Exchange of gases takes place between the alveoli of lungs and the surrounding blood capillaries. The two main gases exchanged are oxygen and carbon-dioxide. Oxygen is absorbed by the blood capillaries from the lungs alveoli by diffusion while carbon-dioxide is absorbed by the lungs alveoli from blood capillaries by diffusion.
Transport of oxygen and carbon-dioxide occurs with the help of respiratory pigment called hemoglobin.
Hemoglobin, the iron containing respiratory pigment is a red colored pigment of blood, which has a very high affinity for oxygen. Hemoglobin though is purple colored but oxy-hemoglobin is of bright red color. Oxygen is transported from lungs to the body cells in the form of oxy-hemoglobin.
Carbon-dioxide is transported from the body cell to the lungs in the forms of carboxy-hemoglobin, carbonic acid, bicarbonates of sodium and potassium.
Answer:
Oxygen is transported to each and every cells in the body of a living organism and carbon dioxide is taken as a waste material from the cells in the process of transportation.
In the process of transportation heart, arteries, veins and capillaries are involved.
Through ven cava from upper body and the lower body the deoxygenated blood enters the right auricle of the heart.
From the right ventricle the blood is pumped to the lungs through pulmonary artery for gaseous exchange.
From the lungs the oxygenated blood enters the left auricle of the heart through pulmonary vein.
The blood is then pumped to the whole body from left ventricle through Aorta.
The oxygenated blood is transportedto every part of the body to provide oxygen to each and every cell so that all the life processes can be powered up.
The red blood cells are involved in this process.