C-Alveoli are thin-walled vascular bag-like structures for exchange of gases. A-trachea or wind pipe is an air conducting tube through, which transport of gases takes place. B-pleural membrane is double layered, which reduces friction on the lung surface. D-diaphragm is involved in the inspiration and expiration process of breathing.
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…
NEET UG 2013 — Zoology Breathing and Exchange of Gases
2013mcqmedium
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. 
Official previous-year question
Held on 30 Apr 2013 · Verified 9 Jul 2026.
Options
- A
A-trachea-long tube supported by complete cartilaginous rings for conducting inspired air
- B
B-pleural membrane-surround ribs on both sides to provide cushion against rubbing
- C
C-alveoli-thin walled vascular bag-like structures for exchange of gases
- D
D-lower end of lungs-diaphragm pulls it down during inspiration
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Breathing and Exchange of Gases in other years
Breathing and Exchange of Gases 2025Breathing and Exchange of Gases 2024Breathing and Exchange of Gases 2023Breathing and Exchange of Gases 2022Breathing and Exchange of Gases 2021Breathing and Exchange of Gases 2020Breathing and Exchange of Gases 2019Breathing and Exchange of Gases 2018Breathing and Exchange of Gases 2017Breathing and Exchange of Gases 2016Breathing and Exchange of Gases 2015Breathing and Exchange of Gases 2014
More NEET UG Breathing and Exchange of Gases questions
Match List-I with List-II. $\begin{array}{|l|l|l|l|}\hline & \text{List - I} & & \text{List - II} \\\hline \text{A}. & \text{Emphysema} & \text{(i)} & \text{Rapid spasms in muscle due to low } \mathrm{Ca}^{++} \text{ in body fluid} \\\hline \text{B.} & \text{Angina pectoris} & \text{(ii)} & \text{Damaged alveolar walls and decreased respiratory surface} \\\hline \text{C.} & \text{Glomerulonephritis} & \text{(iii)} & \text{Acute chest pain when not enough oxygen is reaching to heart muscle} \\\hline \text{D.} & \text{Tetany} & \text{(iv)} & \text{Inflammation of glomeruli of kidney} \\\hline\end{array}$ Choose the correct answer from the options given below :
2025medium
Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and lungs. Choose the correct answer from the following :
2025easy
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: During the transportation of gases, about $20-25$ percent of $\mathrm{CO}_2$ is carried by Haemoglobin as carbamino-haemoglobin. Reason R: This binding is related to high $\mathrm{pCO}_2$ and low $\mathrm{pO}_2$ in tissues. In the light of the above statements, choose the correct answer from the options given below.
2024medium
Match List-I with List-II: $\begin{array}{|l|l|r|l|}\hline & \text{List-I} & & \text{List-II} \\ \hline A. & \text{Residual Volume} & I. & \begin{array}{l} \text{Maximum volume of air that can be breathed in after forced} \\ \text{expiration} \end{array} \\ \hline B. & \text{Vital Capacity} & II. & \text{Volume of air inspired or expired during normal respiration} \\ \hline C. & \text{Expiratory Capacity} & III. & \text{Volume of air remaining in lungs after forcible expiration} \\ \hline D. & \text{Tidal Volume} & IV. & \text{Total volume of air expired after normal inspiration} \\ \hline \end{array}$ Choose the correct answer from the options given below:
2024medium
Match List I with List II :  Choose the correct answer from the options given below :
2024medium
Other Zoology topics for NEET UG
Keep practicing Breathing and Exchange of Gases
Work through every NEET UG Breathing and Exchange of Gases PYQ, year by year.