Zoology-Respiratory Organs

NEET Zoology Respiratory Organs Assertion Reason Question

Type: Assertion Reason-assertion-Easy-Class 11

Assertion (A): Diffusion of gases occurs only in the alveolar region of the respiratory system. | Reason (R): The alveolar region has a thin diffusion membrane and a large surface area allowing efficient gas exchange.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false.

Correct Answer

Option A

Detailed Explanation

The alveolar region is specialized for gas exchange due to its thin membrane and large surface area, which are conducive to efficient diffusion.

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