Question

how is oxygen and carbon dioxide transported in human beings

Answer 1

Oxygen is absorbed by the blood capillaries from the lungs alveoli by diffusion whilecarbon-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.

Answer 2

The oxygen and Carbon dioxide transported through The nostrils and also by mouth to human beings the wind pipe transport the particular gas to lungs where it pumps and take Oxygen and releases carbon dioxide .

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