Question

how are oxygen and carbon dioxide transported in human beings​

Answer 1

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.

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Answer 2

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⚫Oxygen in human being is carried by haemoglobin which is a pigment present in ref blood corpuscles.

⚫ While, Carbon dioxide is transported in dissolved for form in our body.

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