The figure shows a diagrammatic view of human respiratory s…

Biology Breathing and Exchange of Gases Previous Year Questions Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 23, 2026

The figure shows a diagrammatic view of human respiratory system with labels A, B,

C and D. Select the option which gives correct identification and main function and/or characteristic :-

D – Lower end of lungs – diaphragm pulls it down during inspiration

A – trachea - long tube supported by complete cartilaginous rings for conducting inspired air

B – pleural membrane - surround ribs on both sides to provide cushion against rubbing

C – Alveoli - thin walled vascular bag like structures for exchange of gases

Text Solution

Verified by Experts

The correct answer is:

(d)

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