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Exchange of Gases

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Question

Write the factors which affect rate of diffusion of $O_{2}$ and $C O_{2}$ in alveoli.

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Solution

There are some factors which affect the rate of diffusion. These are:-
The partial pressure of oxygen.
The partial pressure of carbon dioxide.
Temperature.
The concentration of gases.
The thickness of the membrane.

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Q. Assertion :Alveoli are the primary sites for exchange of gases. Reason: All factors in our body are favourable for the diffusion of

O_{2}

from alveoli to tissues and that of C

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(O_{2})

and carbon dioxide

(C O_{2})

at alveoli (the site of diffusion) are:

Which of these factors affect the rate of diffusion?

Q. Assertion:

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Reason:

C O_{2}

is 10 times more soluble than

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Q. Define diffusion. Discuss the various factors that affect the rate of diffusion ?

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