Question

Factors that determine the rate of exchange of oxygen gas in the alveolus and blood capillaries

Answer 1

Answer:

alveoli is the sack like structure

Answer 2

The rate of gaseous exchange in alveoli and blood depends on the difference in pressure of gases in both the alveoli and blood capillaries.

Explanation:

1. The air in alveoli has high pressure of oxygen and low pressure of carbon-dioxide.
2. The air in blood vessels has high pressure of carbon-dioxide and low pressure of oxygen
3. Due to the diffusion, the oxygen from alveoli moves towards to blood capillaries and carbon-dioxide diffuses from blood to alveoli.

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