Breathing And Exchange Of Gases
189 Questions
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MP PMT 1992
Q151
Errorless
1. Respiratory organs
MCQ
Larynx is found in
A.
Both frog and rabbit
B.
Neither frog nor rabbit
C.
Frog but not in rabbit
D.
Rabbit but not in frog
CPMT 1992; MP PMT 1995
Q152
Errorless
1. Respiratory organs
MCQ
The right lung of rabbit has four lobes. They are
A.
Anterior lobe, anterior azygous, posterior lobe and right anterior
B.
Posterior lobe, posterior and anterior azygous, right anterior and right posterior
C.
Anterior azygous, right anterior, right posterior and posterior azygous lobe
D.
Anterior lobe, anterior azygous, right anterior and posterior azygous lobe
DPMT 1992; MP PMT 1995; JIPMER 2002
Q153
Errorless
3. Process of respiration
MCQ
Oxy-haemoglobin dissociates into oxygen and deoxyhaemoglobin at
A.
Low $O _ { 2 }$ pressure in tissue
B.
High $O _ { 2 }$ pressure in tissue
C.
Equal $O _ { 2 }$ pressure inside and outside tissue
D.
All times irrespective of $O _ { 2 }$ pressure
DPMT 1992; RPMT 1999; Kerala CET 2003
Q154
Errorless
3. Process of respiration
MCQ
The process by which chloride ions pass into R.B.C. and bicarbonate ions pass out is called
A.
Bicarbonate shift
B.
Chloride shift
C.
Buffer system
D.
Enzyme shift
AIIMS 1992
Q155
Errorless
7. Critical Thinking
MCQ
The nerve impulses which stimulate the intercostal muscles and diaphragm and thus permit breathing, originate in the
A.
Cerebellum
B.
Pons
C.
Hypothalamus
D.
Medulla oblongata
CBSE PMT 1990
Q156
Errorless
3. Process of respiration
MCQ
Chloride shift is essential for the transport of
A.
$C O _ { 2 } \mathrm { a n d } \ O _ { 2 }$
B.
$N _ { 2 }$
C.
$C O _ { 2 }$
D.
$O _ { 2 }$
Q157
Errorless
1. Respiratory organs
MCQ
See the following diagrammatic view of human respiratory system. Identify A to D
A.
A - Soundbox, B - Alveoli, C - Bronchioles, D - Diaphragm
B.
A - Soundbox, B - Alveoli, C - Bronchus, D - Diaphragm
C.
A - Epiglottis, B - Alveoli, C - Bronchioles, D - Diaphragm
D.
A - Epiglottis, B - Alveoli, C - Bronchus, D - Diaphragm In man and mammals, air passes from outside into the lungs through
Q158
Errorless
1. Respiratory organs
MCQ
Vocal cords are situated at
A.
Pharynx
B.
Larynx
C.
Glottis
D.
Bronchial tube
Q159
Errorless
1. 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
Q160
Errorless
1. 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
Q161
Errorless
2. 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.
$1 < 4 < 2 < 3$
Q162
Errorless
2. Pulmonary volumes and capacities
MCQ
Match the items in Column ā I with Column ā II and choose the correct option
| Column-I | Column-II | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
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
Q163
Errorless
3. 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
Q164
Errorless
3. 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.
Q165
Errorless
3. Process of respiration
MCQ
The dissociation curve is associated with
A.
Oxygen
B.
Oxyhaemoglobin
C.
Carbon dioxide
D.
Carbonic anhydrase
Q166
Errorless
3. 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
Q167
Errorless
3. 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
Q168
Errorless
3. 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
Q169
Errorless
4. 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
Q170
Errorless
6. 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
Q171
Errorless
6. 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
Q172
Errorless
6. 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
Q173
Errorless
6. 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
Q174
Errorless
6. 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
Q175
Errorless
6. NCERT(Exemplar Questions)
MCQ
Match the following and mark the correct options Column-I(Animal) WITH Column-II(Respiratory Organ)
| Column-I | Column-II | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
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