Breathing And Exchange Of Gases NEET Previous Year Questions
The students who are targeting for NEET exam should prepare for all the important chapters of NEET syllabus to secure good marks in NEET 2022. Candidates planning to appear in the medical exam must have knowledge about the weightage of chapters. Biology section carries the maximum weightage.
Breathing And Exchange Of Gases is the tenth chapter categorized under the unit ' Human Physiology'. According to the NEET chapterwise weightage Breathing And Exchange Of Gases contributes to around 2% of the total number of questions asked in the last years. On average we can expect 1-2 Breathing And Exchange Of Gases NEET Questions.
Here you will find Breathing And Exchange Of Gases NEET Questions. Solving previous years Breathing And Exchange Of Gases NEET Questions will be beneficial for you. Firstly you get an idea of what type of questions are asked in previous year.
Every year around many of questions of biology are repeated as it is without even changing single word. These Breathing And Exchange Of Gases NEET Questions will definitely guide you in what direction you need extra push.
Breathing And Exchange Of Gases NEET Questions And Answers
AIPMT 2006
1. Which one of the following statements is incorrect:
(1) The residual air in lungs slightly decreases the efficiency of respiration in mammals
(2) The presence of non–respiratory air sacs,
increases the efficiency of respiration in birds
(3) In insects, circulating body fluids serve to
distribute oxygen to tissues
(4) The principle of countercurrent flow facilitates efficient respiration in gills of fishes
Solution : Correct option is 3
2. The majority of carbon dioxide produced by our body cells is transported to the lungs:
(1) Dissolved in the blood
(2) As bicarbonates
(3) As carbonates
(4) Attached to hemoglobin
Solution : Correct option is 2
3. Bowman's glands are found in:
(1) Olfactory epithelium
(2) External auditory canal
(3) Cortical nephrons only
(4) Juxtamedullary nephron
Solution : Correct option is 1
AIPMT 2007
4. Bowman's glands are located in the :
(1) Olfactory epithelium of our nose
(2) Proximal end of uriniferous tubules
(3) Anterior pituitary
(4) Female reproductive system of cockroach
Solution : Correct option is 1
AIPMT 2008
5. What is vital capacity of our lungs:
(1) inspiratory reserve volume plus expiratory reserve volume
(2) total lung capacity minus residual volume
(3) inspiratory reserve volume plus tidal volume
(4) total lung capacity minus expiratory reserve
volume
Solution : Correct option is 2
AIPMT-Pre 2010
6. Listed below are four respiratory capacities (a-d) and four jumbled respiratory volumes of a normal human adult :
Respiratory capacities Respiratory volumes
(a) Residual volume 2500 mL
(b) Vital capacity 3500 mL
(c) Inspiratory reserve 1200 mL volume
(d) Inspiratory capacity 4500 mL
Which one of the following is the correct matching of two capacities and volumes:
(1) (a) 4500 mL, (b) 3500 mL
(2) (b) 2500 mL, (c) 4500 mL
(3) (c) 1200 mL, (d) 2500 mL
(4) (d) 3500 mL, (a) 1200 mL
Solution : Correct option is 4
7. What is true about RBCs in humans:
(1) They do not carry CO2 at all
(2) They carry about 20-25 per cent of CO2
(3) They transport 99.5 per cent of O2
(4) They transport about 80 percent oxygen only and the rest 20 per cent of it is transported in dissolved state in blood plasma.
Solution : Correct option is 2
AIPMT-Pre 2011
8. Two friends are eating together on a dining table. One of them suddenly starts coughing whilebswallowing some food. This coughing would have been due to improper movement of:
(1) Epiglottis
(2) Diaphragm
(3) Neck
(4) Tongue
Solution : Correct option is 1
9. The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part, A, B, C or D is correctly identified along with its function Options:
(1) C : arterial capillary-passes oxygen to tissues
(2) A : alveolar cavity-main site of exchange of
respiratory gases
(3) D : Capillary wall-exchange of O2 and CO2
takes place here
(4) B : red blood cell-transport of CO2
mainly
Solution : Correct option is 2
10. A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O2:
(1) Acts as a reserve during muscular exercise
(2) Raises the pCO2 of blood to 75 mm of Hg.
(3) Is enough to keep oxyhaemoglobin sturation at 96%
(4) Helps in releasing more O2 to the epithelial tissues
Solution : Correct option is 1
AIPMT-Mains 2011
11. Bulk of carbon dioxide (CO2) released from body tissues into the blood is present as :
(1) Carbamino-haemoglobin in RBCs
(2) Bicarbonate in blood plasma and RBCs
(3) Free CO2 in blood plasma
(4) 70% carbamino-haemoglobin and 30% as bicarbonate
Solution : Correct option is 2
AIPMT-Pre 2012
12. Which one of the following is the correct statement for respiration in humans:
(1) Workers in grinding and stone-breaking industries may suffer, from lung fibrosis
(2) Abut 90% of carbon dioxide (CO2) is carried by haemoglobin as carbamino haemoglobin
(3) Cigarette smoking may lead to inflammation of bronchi
(4) Neural signals from pneumotoxic centre in pons region of brain can increase the duration of inspiration
Solution : Correct option is 1
13. People who have migrated from the planes to an area adjoining Rohtang pass about six months back:
(1) suffer from altitude sickness with symptoms like nausea, fatigue, etc.
(2) have the usual RBC count but their haemoglobin has very high binding affinity to O2
(3) have more RBCs and their haemoglobin has a lower binding affinity to O2
(4) are not physically fit to play games like football.
Solution : Correct option is 3
NEET-UG 2013
14. 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 :
(1) D – Lower end of lungs – diaphragm pulls it down during inspiration
(2) A – trachea - long tube supported by complete cartilaginous rings for conducting inspired air
(3) B – pleural membrane - surround ribs on both sides to provide cushion against rubbing
(4) C – Alveoli - thin walled vascular bag like structures for exchange of gases
Solution : Correct option is 1
AIPMT 2014
15. Approximately seventy percent of carbon-dioxide absorbed by the blood will be transported to the lungs:
(1) as bicarbonate ions
(2) in the form of dissolved gas molecules
(3) by binding to R.B.C.
(4) as carbamino - haemoglobin
Solution : Correct option is 1
AIPMT 2015
16. When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe:
(1) rising CO2 concentration
(2) falling CO2 concentration
(3) rising CO2 and falling O2 concentration
(4) falling O2 concentration
Solution : Correct option is 1
NEET-I 2016
17. Asthma may be attributed to :
(1) bacterial infection of the lungs
(2) allergic reaction of the mast cells in the lungs
(3) inflammation of the trachea
(4) accumulation of fluid in the lungs
Solution : Correct option is 2
NEET-II 2016
18. The partial pressure of oxygen in the alveoli of the lungs is :
(1) Less than that in the blood
(2) Less than that of carbon dioxide
(3) Equal to that in the blood
(4) More than that in the blood
Solution : Correct option is 4
19. Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because :
(1) There is a positive intrapleural pressure
(2) Pressure in the lungs is higher than the atomospheric pressure.
(3) There is a negative pressure in the lungs.
(4) There is a negative intrapleural pressure pulling at the lung walls
Solution : Correct option is 4
NEET(UG) 2017
20. Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of:
(1) Inspiratory Reserve Volume
(2) Tidal Volume
(3) Expiratory Reserve Volume
(4) Residual Volume
Solution : Correct option is 4
NEET(UG) 2018
21. Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively:
(1) Inflammation of bronchioles; Decreased respiratory surface
(2) Increased number of bronchioles; Increased respiratory surface
(3) Increased respiratory surface; Inflammation of bronchioles
(4) Decreased respiratory surface; Inflammation of bronchioles
Solution : Correct option is 1
22. Match the items given Column I with those in Column II and select the correct option given below :
Column I Column II
a. Tidal volume i. 2500-3000 mL
b. Inspiratory Reserve ii. 1100-1200 mL
volume
c. Expiratory Reserve iii. 500-550 mL
volume
d. Residual volume iv. 1000-1100 mL
a b c d
(1) iii ii i iv
(2) iii i iv ii
(3) iii iv ii iii
(4) iv iii ii i
Solution : Correct option is 2
23. Which of the following is an occupational respiratory disorder:
(1) Anthracis
(2) Silicosis
(3) Botulism
(4) Emphysema
Solution : Correct option is 2
NEET(UG) 2019
24. Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL:
(1) 1500 mL
(2) 1700 mL
(3) 2200 mL
(4) 2700 mL
Solution : Correct option is 1
NEET(UG) 2019 (ODISHA)
25. Select the correct statement.
(1) Expiration occurs due to external intercostal muscles
(2) Intrapulmonary pressure is lower than the atmospheric pressure during inspiration.
(3) Inspiration occurs when atmospheric pressure is less than intrapulmonary pressure.
(4) Expiration is initiated due to contraction of diaphragm.
Solution : Correct option is 2
26. The maximum volume of air a person can breathe in after a forced expiration is known as:
(1) Expiratory Capacity
(2) Vital Capacity
(3) Inspiratory Capacity
(4) Total lung Capacity
Solution : Correct option is 2
I hope this previous year Breathing And Exchange Of Gases NEET Questions will help you practice better for the NEET exam. To perform better in exam solve more Breathing And Exchange Of Gases NEET Questions.
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