Question

Air sacs are found in

• A. Wind pipe
• B. Lungs
• C. Heart
• D. Kidney

Hint:

Air sacs (alveoli) in the lungs are essential for gas exchange during breathing.

Answer 1

The Correct Option is B

Step 1: Understanding air sacs.
Air sacs are small, balloon-like structures in the lungs that facilitate the exchange of gases (oxygen and carbon dioxide) between the air and the blood.
Step 2: Analyzing the options.
- (A) Wind pipe: The wind pipe (trachea) is a passage for air, but it does not contain air sacs.
- (B) Lungs: This is correct. The lungs contain air sacs known as alveoli, where gas exchange occurs.
- (C) Heart: The heart does not contain air sacs; it is responsible for pumping blood.
- (D) Kidney: The kidneys are involved in filtration and excretion, not in gas exchange, and do not have air sacs.
Step 3: Conclusion.
The correct answer is (B) Lungs, as they contain the air sacs (alveoli) involved in breathing.
Final Answer: The correct answer is (B) Lungs.