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Breathing And Exchange Of Gases

189 Questions Start Errorless Test
All Exams Allen Errorless
NEET 2022 Q1 Errorless 7. Critical Thinking MCQ
Which of the following is not the function of conducting part of respiratory system
A.
Temperature of inhaled air is brought to body temperature
B.
Provides surface for diffusion of $O _ { 2 }$ and $C O _ { 2 }$
C.
It clears inhaled air from foreign particles
D.
Inhaled air is humidified
NEET 2021, 24 Q2 Errorless 7. Critical Thinking MCQ
Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli
A.
Low $p O _ { 2 } ,$ high ${ \mathsf { p C O } } _ { 2 }$ more $H ^ { + }$ , higher temperature
B.
High $p O _ { 2 } ,$ high ${ p C O } _ { 2 }$ less $H ^ { + }$ , higher temperature
C.
Low $p O _ { 2 } ,$ low $p C O _ { 2 }$ more $H ^ { + }$ , higher temperature
D.
High $p O _ { 2 } ,$ low ${ p C O } _ { 2 }$ less $H ^ { + } ,$ lower temperature
NEET 2021 Q3 Errorless 9. Assertion and Reason MCQ
Assertion : A person goes to high altitude and experiencesaltitudesickness'with symptoms like breathing difficulty and heart palpitations Reason: Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
NEET 2020 Q4 Errorless 7. Critical Thinking MCQ
Identify the wrong statement with reference to transport of oxygen
A.
Low ${ \mathsf { p C O } } _ { 2 }$ in alveoli favours the formation of oxyhaemoglobin
B.
Binding of oxygen with haemoglobin is mainly related to partial pressure of $\mathrm { O } _ { 2 }$
C.
Partial pressure of ${ \mathrm { C O } } _ { 2 }$ can interfere with $\mathrm { O } _ { 2 }$ binding with haemoglobin
D.
Higher H+ conc. in alveoli favours the formation of oxyhaemoglobin
NEET 2019 Q5 Errorless 7. Critical Thinking MCQ
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to
A.
Benign growth on mucous lining of nasal cavity
B.
Inflammation of bronchi and bronchioles
C.
Proliferation of fibrous tissues and damage of the alveolar walls
D.
Reduction in the secretion of surfactants by pneumocytes
NEET 2019 Q6 Errorless 7. Critical Thinking MCQ
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 [NCERT $\mathbf { P } _ { \ P } .$ No. 187]
A.
1500 mL
B.
1700 mL
C.
2200 mL
D.
2700 mL
NEET 2018 Q7 Errorless 5. Disorders of respiration system MCQ
Which of the following is an occupational respiratory disorder
A.
Anthracis
B.
Silicosis
C.
Botulism
D.
Emphysema
NEET 2018 Q8 Errorless 7. Critical Thinking MCQ
Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively
A.
Inflammation of bronchioles, Decreased respiratory surface
B.
Increased number of bronchioles; Increased respiratory surface
C.
Increased respiratory surface; Inflammation of bronchioles
D.
Decreased respiratory surface; Inflammation of bronchioles
NEET 2017 Q9 Errorless 2. Pulmonary volumes and capacities MCQ
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration because of
A.
Residual Volume
B.
Inspiratory Reserve Volume
C.
Tidal Volume
D.
Expiratory Reserve Volume
NEET (Phase-II) 2016 Q10 Errorless 3. Process of respiration MCQ
The partial pressure of oxygen in the alveoli of the lungs is
A.
Less than that of carbon dioxide
B.
Equal to that in the blood
C.
More than that in the blood
D.
Less than that in the blood
NEET (Phase-II) 2016 Q11 Errorless 3. Process of respiration MCQ
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because
A.
Pressure in the lungs is higher than the atmospheric pressure
B.
There is a negative pressure in the lungs
C.
There is a negative intrapleural pressure pulling at the lung walls
D.
There is a positive intrapleural pressure
NEET (Phase-I) 2016 Q12 Errorless 3. Process of respiration MCQ
Reduction in pH of blood will
A.
Reduce the rate of heart beat
B.
Reduce the blood supply to the brain
C.
Decrease the affinity of hemoglobin with oxygen
D.
Release bicarbonate ions by the liver
NEET (Phase-I) 2016 Q13 Errorless 6. NCERT(Exemplar Questions) MCQ
Incidence of Emphysema ā€“ a respiratory disorder is high in cigarette smokers. In such cases
A.
The bronchioles are found damaged
B.
The alveolar walls are found damaged
C.
The plasma membrane is found damaged
D.
The respiratory muscles are found damaged
NEET (Phase-I) 2016 Q14 Errorless 7. Critical Thinking MCQ
Asthma may be attributed to
A.
Bacterial infection of the lungs
B.
Allergic reaction of the mast cells in the lungs
C.
Inflammation of the trachea
D.
Accumulation of fluid in the lungs
NEET (Phase-I) 2016 Q15 Errorless 8. Self Evaluation Test MCQ
It is much easier for a small animal to run uphill than for a large animal, because
A.
It is easier to carry a small body weight
B.
Smaller animals have a higher metabolic rate
C.
Small animals have a lower $O _ { 2 }$ requirement
D.
The efficiency of muscles in large animals is less than in the small animals
GUJCET 2015 Q16 Errorless 2. Pulmonary volumes and capacities MCQ
Complete and balanced the following reaction $$ N a _ { 2 } H P O _ { 4 } + X Y + N a H _ { 2 } P O _ { 4 } $$
A.
${ \tt X } = N a H C O _ { 3 }$ Y = NaCl
B.
${ \mathrm { X } } = ~ H _ { 2 } C O _ { 3 } ,$ $\Upsilon = N a H _ { 2 } C O _ { 3 }$
C.
${ \mathrm { X } } = { \mathit { N a H C O } } _ { 3 , } $ $\Upsilon = H _ { 2 } C O _ { 3 }$
D.
${ \mathrm { X } } = H _ { 2 } C O _ { 3 } ,$ $\mathsf { Y } = \mathsf { N a } { H C O _ { 3 } }$
GUJCET 2015 Q17 Errorless 2. Pulmonary volumes and capacities MCQ
How much amount of volume of air is in lungs FRC
A.
1500 ml to 1600 ml
B.
2100 ml to 2500 ml
C.
2500 ml to 3000 ml
D.
1600 ml to 2100 ml
AIPMT (Cancelled) 2015 Q18 Errorless 3. Process of respiration MCQ
When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe
A.
Rising $C O _ { 2 }$ concentration
B.
Falling $C O _ { 2 }$ concentration
C.
Rising $C O _ { 2 }$ and falling $O _ { 2 }$ concentration
D.
Falling $O _ { 2 }$ concentration
GUJCET 2014 Q19 Errorless 7. Critical Thinking MCQ
Which option is completely correct for the given statements Statement 1 ā€“ The nerve impulse ordered by respiratory centre passes through nerve to the diaphragm and the intercostal muscles and regulates respiration Statement 2 - Respiratory centres scatterly located in the brain stem gives of rhythmic stimuli to diaphragm and respiratory muscle and regulate respiration
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
J & K CET 2012 Q20 Errorless 2. Pulmonary volumes and capacities MCQ
The volume of air which remains in the conducting airways and is not available for gas exchange is called
A.
Vital capacity
B.
Functional residual capacity
C.
Forced expiratory volume
D.
Anatomic dead space
MP PMT 2012; Kerala PMT 2012 Q21 Errorless 2. Pulmonary volumes and capacities MCQ
The enzyme essential for the transport of $C O _ { 2 }$ as bicarbonate in blood is
A.
Carboxypeptidase
B.
Succinic dehydrogenase
C.
Carbonic anhydrase
D.
Thrombokinase
E.
Lactase
WB JEE 2012 Q22 Errorless 2. Pulmonary volumes and capacities MCQ
The volume of anatomical dead space' air is normally
A.
230 ml
B.
210ml
C.
190ml
D.
150 ml
WB JEE 2012 Q23 Errorless 3. Process of respiration MCQ
Choose the right sequential phenomena among the following during the delivery of O2 from blood to tissue $O _ { 2 }$
(P) Absorption of $C O _ { 2 }$ by the blood
(Q) Reaction of absorbed $C O _ { 2 }$ with $H _ { 2 } O$ to from $H _ { 2 } C O _ { 3 }$ within RBC and its conversion into $H ^ { + }$ and HCO3 ions
(R) Reaction of absorbed CO2 with H2O in plasma to form $C O _ { 2 }$ $H _ { 2 } O$ $H _ { 2 } C O _ { 3 }$ and its conversion into $H ^ { + }$ and $H C O _ { 3 } ^ { - }$ ions
(S) Combination of $H ^ { + }$ with haem portion of $H b O _ { 2 }$ to release $O _ { 2 }$
(T) Combination of $H C O _ { 3 } ^ { - }$ with haem portion $H b O _ { 2 }$ to form reduced haemoglobin and release of $O _ { 2 }$
A.
P, Q, T
B.
P, R, S
C.
P, Q, S
D.
P, R, T
Kerala PMT 2012 Q24 Errorless 3. Process of respiration MCQ
In humans, which among these is not a step in respiration
A.
Pulmonary ventilation
B.
Alveolar diffusion of O2 and $O _ { 2 }$ $C O _ { 2 }$
C.
Transport of gases by blood
D.
Diffusion of $O _ { 2 }$ and $C O _ { 2 }$ between blood and tissues
E.
Utilization of $C O _ { 2 }$ by cells for catabolic reactions
AIIMS 2012 Q25 Errorless 3. Process of respiration MCQ
Oxygen binding to haemoglobin in blood is
A.
Directly proportional to the concentration of $C O _ { 2 }$ the medium
B.
Inversely proportional to the concentration of $C O _ { 2 }$ in the medium
C.
Directly proportional to the concentration of CO in the medium
D.
Independent of the concentration of CO in the medium