Question

During respiration, the gaseous exchange takes place in

• A. Trachea and larynx
• B. Alveoli and throat
• C. Throat and Lungs
• D. Lungs and Alveoli

Hint:

The alveoli are specialized for gas exchange due to their thin walls and large surface area, allowing for efficient diffusion of gases.

Answer 1

The Correct Option is D

- Gaseous exchange in respiration takes place in the alveoli, which are small air sacs in the lungs. Oxygen is absorbed into the bloodstream, and carbon dioxide is expelled from the blood into the alveoli to be exhaled.
- The trachea, larynx, and throat are involved in air passage but not in gas exchange.

Conclusion: Gaseous exchange occurs in the lungs and alveoli, making option (d) the correct answer.