Question

2. a) How does transportation of oxygen takes place to every cell in Human body​

Answer 1

Answer:

As blood passes through the lungs, the haemoglobin picks up oxygen because of the increased oxygen pressure in the capillaries of the lungs, and can then release this oxygen to body cells where the oxygen pressure in the tissues is lowe

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Answer 2

The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place.

The transfer of oxygen into the blood is through simple diffusion. The oxygen molecules move, by diffusion, out of the capillaries and into the body cells.

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