Question

How do capillaries enable exchange of substances between blood and tissue fluid?

Answer 1

Answer:

Exchange of molecules

Oxygen diffuses through the capillary wall, into the tissue fluid and the cells. Carbon dioxide diffuses from the cells into the tissue fluid, then across the capillary walls into the blood plasma.

Explanation:

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Answer 2

Answer:

Exchange of molecules:-

Oxygen diffuses through the capillary wall, into the tissue fluid and the cells. Carbon dioxide diffuses from the cells into the tissue fluid, then across the capillary walls into the blood plasma.

Explanation:

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