Why carbon dioxide diffuse out of the cell from the bloodstream?

Diffusion is the movement of particles from a region of high concentration to a region of low concentration Carbon dioxide is present in your body cells at a high concentration because the cells are making it. The process which makes carbon dioxide in cells is respiration This is the release of energy from food. Carbon dioxide is a waste product of respiration The carbon dioxide molecules diffuse into the blood because there is a lower concentration in the than in the cells.

This is because the blood is always moving, so the carbon dioxide is carried away and does not build up The difference in concentration between the cells and the blood keeps carbon dioxide diffusing in the correct direction See: bbc.co.uk/schools/gcsebitesize/biology/c....

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