Quick Quiz
Questions ▼
Breathing and Exchange of Gases mcq. We covered all the Breathing and Exchange of Gases mcq in this post for free so that you can practice well for the exam.
Install our MCQTUBE Android App from the Google Play Store and prepare for any competitive government exams for free.
These types of competitive mcqs appear in exams like SSC CGL, CHSL, JE, MTS, Stenographer, CPO, Railway Group-D, NTPC, ALP, JE, RPF, Tech, Bank, Delhi Police Constable, UP Lekhpal, dsssb, DDA ASO, BPSC Teaching, Defence, UPSSSC, UPSC (Pre), UPP, SI, UPTET, UPPCS, BPSC, BSSC, SBI, IBPS, LIC, State PCS, CDS, NDA, Assistant Commandant, and other Competitive Examinations, etc.
We have divided the complete NEET syllabus into several small posts on our website for your convenience.
You will get their respective links in the related posts section provided below.
Related Posts:
- MCQ on Behaviour of Real Gases
- Solid Liquid and Gases Class 5
- Kinetic Theory of Gases NEET Questions
mcq on Breathing and Exchange of Gases for NEET Students
Which of the following does not affect the attachment of oxygen to hemoglobin?
(A) The partial pressures of oxygen and carbon dioxide
(B) Hydrogen ion concentration
(C) Temperature
(D) Reduced levels of carbonic anhydrase
Option d – Reduced levels of carbonic anhydrase
Book lungs serve as respiratory organs in
(A) Arthropods
(B) Sponges
(C) Coelenterates
(D) Earthworms
Option a – Arthropods
The lungs are situated in the
(A) Thoracic cavity
(B) Both thoracic and abdominal cavities
(C) Abdominal cavity
(D) None of the above
Option a – Thoracic cavity
In which of the following Organisms does Respiration occur without any specific respiratory system?
(A) Cockroach
(B) Fish
(C) Frog
(D) Earthworm
Option d – Earthworm
Choose the INCORRECT statement regarding tidal volume.
(A) Around 500 mL of air is involved
(B) It represents the extra air exhaled forcefully
(C) It is the amount of air exchanged during normal breathing
(D) A healthy adult breathes in and out about 6000 to 8000 mL of air per minute
Option b – It represents the extra air exhaled forcefully
The greatest amount of air a person can inhale after a forceful exhalation is termed
(A) Vital capacity
(B) Total lung capacity
(C) Inspiratory capacity
(D) Functional residual capacity
Option a – Vital capacity
The lungs are enclosed by which of the following?
(A) Pleural membrane
(B) Peritoneum
(C) Pericardium
(D) Mesoglea
Option a – Pleural membrane
Gas exchange in the lungs happens through
(A) Simple diffusion
(B) Active Transport
(C) Osmosis
(D) Both (A) and (B)
Option a – Simple diffusion
The enzyme carbonic anhydrase is most abundant in
(A) Platelets
(B) White blood cells
(C) Red blood cells
(D) Plasma
Option c – Red blood cells
What is the shape of the diaphragm during exhalation?
(A) Oblique
(B) Dome-shaped
(C) Normal
(D) Flattened
Option b – Dome-shaped
The air remaining in the lungs even after maximum exhalation is called
(A) Residual volume
(B) Vital capacity
(C) Total capacity
(D) Tidal volume
Option a – Residual volume
Which condition does NOT promote the formation of oxyhemoglobin?
(A) Low oxygen pressure and high carbon dioxide levels
(B) Cooler temperatures
(C) High oxygen pressure and low carbon dioxide levels
(D) Low hydrogen ion concentration
Option a – Low oxygen pressure and high carbon dioxide levels
What promotes the release of oxygen from oxyhemoglobin at tissues?
(A) Low hydrogen ion concentration
(B) Low oxygen and high carbon dioxide pressure
(C) High oxygen and low carbon dioxide pressure
(D) None of these
Option b – Low oxygen and high carbon dioxide pressure
The pneumotaxic center is located in the
(A) Pons of the brain
(B) Cerebrum
(C) Cerebellum
(D) Thalamus
Option a – Pons of the brain
The formula for calculating lung vital capacity is
(A) IRV + TV + ERV
(B) IRV – ERV
(C) IRV + ERV + TV – RV
(D) IRV + TV
Option a – IRV + TV + ERV
In mammals, how is carbon dioxide mainly transported to the lungs?
(A) Through plasma
(B) With red blood cells
(C) Via white blood cells
(D) Both plasma and red blood cells
Option d – Both plasma and red blood cells
Which group uses gills for Respiration?
(A) Shark, Tadpole, Scorpion
(B) Dogfish, Flatworms, Earthworms
(C) Shark, Molluscs, Tadpole
(D) Aquatic arthropods, Dogfish, Cockroaches
Option c – Shark, Molluscs, Tadpole
What structure prevents Food from entering the larynx?
(A) Epiglottis
(B) Glottis
(C) Glisson’s capsule
(D) Rugae
Option a – Epiglottis
The air volume exchanged during normal breathing is called
(A) Inspiratory reserve volume
(B) Tidal volume
(C) Expiratory reserve volume
(D) Residual volume
Option b – Tidal volume
Which factor does NOT support the formation of the oxygen dissociation curve?
(A) High oxygen pressure in alveoli
(B) Low oxygen pressure in tissues
(C) High temperature
(D) Elevated carbon dioxide in tissues
Option a – High oxygen pressure in alveoli
Where is the respiratory rhythm controlled?
(A) Cerebrum
(B) Medulla oblongata
(C) Cerebellum
(D) Cerebral cortex
Option b – Medulla oblongata
Which factor does the brain’s chemosensitive center respond to?
(A) Oxygen levels in blood
(B) Carbon dioxide levels in blood
(C) Calcium concentration
(D) Glucose concentration
Option b – Carbon dioxide levels in blood
What is the approximate oxygen pressure in the alveoli?
(A) 50 mm Hg
(B) 200 mm Hg
(C) 104 mm Hg
(D) 40 mm Hg
Option c – 104 mm Hg
Which of the following does NOT rely on surface diffusion for gas exchange?
(A) Flatworms
(B) Coelenterates
(C) Arthropods
(D) Poriferans
Option c – Arthropods
Choose the correct sequence for the passage of air in the human respiratory tract.
(A) Nasal chamber → Larynx → Pharynx → Trachea → Bronchioles → Bronchi → Alveoli
(B) Nasal chamber → Pharynx → Trachea → Larynx → Bronchi → Bronchioles → Alveoli
(C) Nasal chamber → Larynx → Bronchi → Pharynx → Trachea → Bronchioles → Alveoli
(D) Nasal chamber → Pharynx → Larynx → Trachea → Bronchi → Bronchioles → Alveoli
Option d – Nasal chamber → Pharynx → Larynx → Trachea → Bronchi → Bronchioles → Alveoli
We covered all the breathing and exchange of gases mcq above in this post for free so that you can practice well for the exam.
Check out the latest mcq content by visiting our mcqtube website homepage.
Also, check out:
