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Breathing And Exchange Of Gases

331 Questions Start Allen Test
All Exams Allen Errorless
Q301 Errorless Respiratory organs MCQ
The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which qives correct identification and main function and/or characteristic
A.
D ā€“ Lower end of lungs ā€“ diaphragm pulls it down during inspiration
B.
A - Trachea - long tube supported by complete cartilaginous rings for conducting inspired air
C.
B ā€“ Pleural membrane ā€“ surround ribs on both sides to provide cushion against rubbing
D.
C ā€“ Alveoli ā€“ thin walled vascular bag like structures for exchange of gases
Q302 Errorless Respiratory organs MCQ
The most important function of diaphragm of the mammals is
A.
To divide the body cavity into compartment
B.
To protect lungs
C.
To aid in respiration
D.
To aid in ventilation
Q303 Errorless Pulmonary volumes and capacities MCQ
Arrange the following in the order of increasing volume (1) Tidal volume (2) Residual volume (3) Expiratory reserve volume (4) Vital capacity
A.
$1 < 2 < 3 < 4$
B.
$1 < 3 < 2 < 4$
C.
$1 < 4 < 3 < 2$
D.
$1 < 4 < 2 < 3$
Q304 Errorless Pulmonary volumes and capacities MCQ
Match the items in Column ā€“ I with Column ā€“ II and choose the correct option
Column-IColumn-II
(A)Tidal volume
(B)Inspiratory reserve volume
(C)Expiratory reserve volume
(D)Residual volume
(E)Vital capacity
(P)2500 to 3000 ml of air
(Q)1000 ml of air
(R)500 ml of air
(S)3400 to 4800 ml of air
(T)1200 ml of air
A.
A-R, B-S, C-Q, D-P, E-T
B.
A-R, B-P, C-Q, D-T, E-S
C.
A-R, B-Q, C-S, D-T, E-P
D.
A-T, B-S, C-Q, D-P, E-Q
E.
A-S, B-R, C-Q, D-P, E-T
Q305 Errorless Process of respiration MCQ
Which one of the following is a possibility for most of us in regards to breathing, by making a conscious effort [NCERT; CBSE PMT (Mains) 20111
A.
One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all
B.
The lungs can be made fully empty by forcefully breathing out all air from them
C.
One can breathe out air totally without oxygen
D.
One can breathe out air through eustachian tubes by closing both the nose and the mouth
Q306 Errorless Process of respiration MCQ
Exhalation is the process of expulsion of air through the respiratory tract. Which figure correctly shows the process of exhalation [NCERT]
A.
B.
C.
D.
Q307 Errorless Process of respiration MCQ
The dissociation curve is associated with
A.
Oxygen
B.
Oxyhaemoglobin
C.
Carbon dioxide
D.
Carbonic anhydrase
Q308 Errorless Process of respiration MCQ
The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the option given below, the one part A, B, C or D is correctly identified along with its functions
A.
B : Red blood cell ā€“ transport of CO2 mainly $\mathsf { C O } _ { 2 }$
B.
C : Arterial capillary - passes oxygen to tissues
C.
A : alveolar cavity - main site of exchange of respiratory gases
D.
D : Capillary wall ā€“ exchange of O2 and CO2 takes $\mathrm { O } _ { 2 }$ ${ \mathrm { C O } } _ { 2 }$ place here
Q309 Errorless Process of respiration MCQ
Following diagram indicates the mechanism of breathing. Identify all the parts A, B, C and D correctly
A.
A - Air expelled from lungs; B ā€“ Ribs and sternum raised; C ā€“ Diaphragm contracted; D - Volume of thorax decreased
B.
A - Air expelled from lungs; B - Ribs and sternum raised; C ā€“ Diaphragm relaxed; D ā€“ Volume of thorax decreased
C.
A - Air expelled from lungs; B - Ribs and sternum return to original position; C ā€“ Diaphragm relaxed; D ā€“ Volume of thorax decreased
D.
A - Air entering into lungs; B - Ribs and sternum raised; C - Diaphragm contracted; D - Volume of thorax raised
Q310 Errorless Process of respiration MCQ
Respiration is the physiological process in which
A.
Breathing occurs
B.
Breathing and external respiration occur
C.
Breathing, external respiration and cellular respiration occur
D.
Only inspiration occurs
Q311 Errorless Control of breathing MCQ
Respiration mechanism is controlled by
A.
Central nervous system
B.
Autonomic nervous system
C.
Sympathetic nervous system
D.
Parasympathetic nervous system
Q312 Errorless NCERT(Exemplar Questions) MCQ
Respiration in insects is called direct because
A.
The tissues exchange $0 _ { 2 } / \mathrm { C O } _ { 2 }$ directly with the air in the tubes
B.
The tissues exchange $0 _ { 2 } / \mathrm { C O } _ { 2 }$ directly with coelomic fluid
C.
The tissues exchange ${ \sf O } _ { 2 } / { \sf C } { \sf O } _ { 2 }$ directly with the air outside through body surface
D.
Tracheal tubes exchange $0 _ { 2 } / \mathrm { C O } _ { 2 }$ directly with the haemocoel which then exchange with tissues
Q313 Errorless NCERT(Exemplar Questions) MCQ
Regarding the functions of our respiratory system, mark the wrong entry
A.
Humidifies the air
B.
Warms up the air
C.
Diffusion of gases
D.
Cleans up the air
Q314 Errorless NCERT(Exemplar Questions) MCQ
A person suffers punctures in his chest cavity in an accident, without any damage to the lungs its effect could be
A.
Reduced breathing rate
B.
Rapid increase in breathing rate
C.
No change in respiration
D.
Cessation of breathing
Q315 Errorless NCERT(Exemplar Questions) MCQ
Mark the true statement among the following with reference to normal breathing
A.
Inspiration is a passive process where as expiration is active
B.
Inspiration is a active process where as expiration is passive
C.
Inspiration and expiration are active processes
D.
Inspiration and expiration are passive processes
Q316 Errorless NCERT(Exemplar Questions) MCQ
A person breathes in some volume of air by forced inspiration after having a forced expiration. This quantity of air taken in is
A.
Total lung capacity
B.
Tidal volume
C.
Vital capacity
D.
Inspiratory capacity
Q317 Errorless NCERT(Exemplar Questions) MCQ
Match the following and mark the correct options Column-I(Animal) WITH Column-II(Respiratory Organ)
Column-IColumn-II
(A)Earthworm
(B)Aquatic Arthropods
(C)Fishes
(D)Birds/Reptiles
(P)Moist cuticle
(Q)Gills
(R)Lungs
(S)Trachea
A.
A-Q, B-P, C-S, D-R
B.
A-P, B-S, C-Q, D-R
C.
A-P, B-R, C-Q, D-S
D.
A-P, B-Q, C-S, D-R
Q318 Errorless NCERT(Exemplar Questions) MCQ
Mark the correct pair of muscles involved in the normal breathing in humans
A.
External and internal intercostals muscles
B.
Diaphragm and abdominal muscles
C.
Diaphragm and external intercostals muscles
D.
Diaphragm and internal intercostals muscles
Q319 Errorless NCERT(Exemplar Questions) MCQ
Respiratory process is regulated by certain specialized centres in the brain. One of the following listed centres can reduce the inspiratory duration upon stimulation
A.
Medullary inspiratory centre
B.
Pneumotaxic centre
C.
Apneustic centre
D.
Chemosensitive centre
Q320 Errorless NCERT(Exemplar Questions) MCQ
$\mathrm { C O } _ { 2 }$ dissociates from carbamino haemoglobin when
A.
${ \mathsf { p C O } } _ { 2 }$ is high and ${ \mathsf { p O } } _ { 2 }$ is low
B.
${ \mathsf { p O } } _ { 2 }$ is high and ${ \mathsf { p C O } } _ { 2 }$ is low
C.
${ \mathsf { p C O } } _ { 2 }$ and ${ \mathsf { p O } } _ { 2 }$ are equal
D.
None of the above
Q321 Errorless NCERT(Exemplar Questions) MCQ
Identify the correct and incorrect match about respiratory volume and capacities and mark the correct answer
(i) Inspiratory capacity (IC) = Tidal Volume + Residual volume
(ii) Vital Capacity (VC) = Tidal Volume (TV) + Inspiratory Reserve Volume (IRV) + Expiratory Reserve Volume (ERV)
(iii) Residual Volume (RV) = Vital Capacity (VC) - Inspiratory Reserve Volume (IRV)
(iv) Tidal Volume (TV) = Inspiratory Capacity (IC) - Inspiratory Reserve Volume (IRV) Options:
A.
i Incorrect, ii Incorrect, iii Incorrect, iv Correct
B.
i Incorrect, ii Correct, iii Incorrect, iv Correct
C.
i Correct, ii Correct, iii Incorrect, iv Correct
D.
i Correct, ii Incorrect, iii Correct, iv Incorrect
Q322 Errorless NCERT(Exemplar Questions) MCQ
The oxygen ā€“ haemoglobin dissociation curve will show a right shift in case of
A.
High ${ \mathsf { p C O } } _ { 2 }$
B.
High ${ \mathsf { p O } } _ { 2 }$
C.
Low ${ \tt p C O } _ { 2 }$
D.
Less Hāŗ concentration
Q323 Errorless Critical Thinking MCQ
Which two of the following changes (A - B) usually tend to occur in the plain dwellers when they move to high altitudes (3500 m or more) (A) Increase in red blood cell size (B) Increase in red blood cell production (C) Increased breathing rate (D) Increase in thrombocyte count Changes occurring are [NCFRT Pa No 1801 [CRCE DMT /D- \ 00101
A.
A and B
B.
B and C
C.
C and D
D.
A and D
Q324 Errorless Critical Thinking MSQ
Which of the following statement(s) is/are correct
A.
Silicosis is the result of exposure to silica that causes permanent lung damage and death
B.
Transportation of gases and digested food materials in the body of higher animals causes muscle weakness and fatigue
C.
ADH is a neurohypophysial hormone that regulates body water
D.
Myasthenia gravis is a neuromuscular disease that is mediated by circulatory system
Q325 Errorless Critical Thinking MCQ
seiect ue correct events tnat occur auring inspiration
(i) Contraction of diaphragm
(ii) Contraction of external inter-costal muscles
(iii) Pulmonary volume decreases
(iv) Intra pulmonary pressure increases
A.
Only (iv)
B.
(i) and (ii)
C.
(iii) and (iv)
D.
(i), (ii) and (iv)