हाउ इज ऑक्सीजन एंड कार्बन डाइऑक्साइड ट्रांसपोर्टेड इन हुमन बीइंग्स
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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. ... Oxygen is transported from lungs to the body cells in the form of oxy-hemoglobin.
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