Question

Assertion: alveoli are the primary sites for exchange of gases
Reason: all factors in our body are favourable for the diffusion of O2 from alveoli to tissues and that of Co2 from tissues to aveoli.

a. Assertion and reason both are correct statements and reason is correct explanation

for assertion.

b. Assertion and reason both are correct statements but reason is not correct

explanation for assertion.

c. Assertion is correct statement but reason is wrong statement.

d. Assertion is wrong statement but reason is correct statement.​

Answer 1

Answer:

a. Assertion and reason both are correct statements and reason is correct explanation.

Answer 2

Answer:

Similarly, a gradient of CO2 is present in the opposite direction i.e, from tissues to blood and blood to alveoli. It is further dependent on the solubility of the diffusing gases. ... Therefore all the factors in our body are favourable for diffusion of O2 from alveoli to tissues and that of CO2 from tissues to alveoli

Explanation:

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