Question

How is oxygen and carbon-dioxide transported i human beings? ​

Answer 1

Answer:

oxygen - oxyhaemoglobin

carbon dioxide- carbominohaemoglobin

-dissolved form of plasme

Answer 2

Answer:

Arteries - Arteries carry oxygenated blood which comes through the heart . Arteries are thick so due to high pressure they don't get damaged.

Veins - Contain de-oxygenated blood which comes from the body to the heart. This blood is transferred to lungs for oxygenation . Viens have valves which ensure that blood dosent flow back.

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