Q51
Allen
(Conceptual Quetions)
MCQ
Carbon monoxide has greater affinity for haemoglobin as compare to oxygen :-
A.
1000 Times
B.
200 Times
C.
20 Times
D.
2 Times
Q52
Allen
(Conceptual Quetions)
MCQ
About 97% of oxygen is transported by RBC remaining 3% is :-
A.
Dissolved in plasma & transported
B.
Retained in lungs
C.
Attached to cell membranes
D.
Found inside mitochondria
Q53
Allen
(Conceptual Quetions)
MCQ
Increased asthmatic attacks in certain seasons are related to :-
A.
Hot and humid environment
B.
Eating fruits preserved in tin containers
C.
Inhalation of seasonal pollen
D.
Low temperature
Q54
Allen
(Conceptual Quetions)
MCQ
Disease aggravated by pollution is :-
A.
Haemophilia
B.
Rheumatism
C.
Scurvy
D.
Bronchitis
Q55
Allen
(Conceptual Quetions)
Match the Columns
represents diseases and represents their symptoms. Which of the following pairs are correctly matched for them? Match with
| Column-I | Column-II | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
A.
P-III, Q-II, R-I
B.
P-III, Q-I, R-II
C.
P-II, Q-III, R-I
D.
P-I, Q-II, R-III
Q56
Allen
PYQ
MCQ
Approximately seventy percent of carbondioxide absorbed by the blood will be transported to the lungs:
A.
as bicarbonate ions
B.
in the form of dissolved gas molecules
C.
by binding to R.B.C.
D.
as carbamino - haemoglobin
Q57
Allen
PYQ
MCQ
When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe?
A.
rising $\mathsf { C O } _ { 2 }$ concentration
B.
falling $\mathsf { C O } _ { 2 }$ concentration
C.
rising $\mathsf { C O } _ { 2 }$ and falling ${ { 0 } _ { 2 } }$ concentration
D.
falling $O_2$ concentration
Q58
Allen
PYQ
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
Q59
Allen
PYQ
MCQ
The partial pressure of oxygen in the alveoli of the lungs is :-
A.
Less than that in the blood
B.
Less than that of carbon dioxide
C.
Equal to that in the blood
D.
More than that in the blood
Q60
Allen
PYQ
MCQ
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because :-
A.
There is a positive intrapleural pressure
B.
Pressure in the lungs is higher than the atmospheric pressure.
C.
There is a negative pressure in the lungs.
D.
There is a negative intrapleural pressure pulling at the lung walls
Q61
Allen
PYQ
MCQ
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of:
A.
Inspiratory Reserve Volume
B.
Tidal Volume
C.
Expiratory Reserve Volume
D.
Residual Volume
Q62
Allen
PYQ
MCQ
Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?
A.
Inflammation of bronchioles;
Decreased respiratory surface
Decreased respiratory surface
B.
Increased number of bronchioles;
Increased respiratory surface
Increased respiratory surface
C.
Increased respiratory surface;
Inflammation of bronchioles
Inflammation of bronchioles
D.
Decreased respiratory surface;
Inflammation of bronchioles
Inflammation of bronchioles
Q63
Allen
PYQ
Match the Columns
Match the items given in column-I with those in column-II and select the correct option given below:
Match Column-I with Column-II:
Match Column-I with Column-II:
| Column-I | Column-II | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
A.
A-III, B-I, C-IV, D-II
B.
A-III, B-I, C-IV, D-II
C.
A-III, B-IV, C-II, D-III
D.
A-IV, B-III, C-II, D-I
Q64
Allen
PYQ
MCQ
Which of the following is an occupational respiratory disorder ?
A.
Anthracis
B.
Silicosis
C.
Botulism
D.
Emphysema
Q65
Allen
PYQ
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?
A.
1500 mL
B.
1700 mL
C.
2200 mL
D.
2700 mL
Q66
Allen
PYQ
MCQ
Select the correct statement.
A.
Expiration occurs due to external intercostal muscles
B.
Intrapulmonary pressure is lower than the atmospheric pressure during inspiration.
C.
Inspiration occurs when atmospheric pressure is less than intrapulmonary pressure.
D.
Expiration is initiated due to contraction of diaphragm.
Q67
Allen
PYQ
MCQ
The maximum volume of air a person can breathe in after a forced expiration is known as:
A.
Expiratory Capacity
B.
Vital Capacity
C.
Inspiratory Capacity
D.
Total lung Capacity
Q68
Allen
PYQ
MCQ
Identify the wrong statement with reference to transport of oxygen.
A.
Low pCOā in alveoli favours the formation of oxyhaemoglobin.
B.
Binding of oxygen with haemoglobin is mainly related to partial pressure of Oā.
C.
Partial pressure of COā can interfere with Oā binding with haemoglobin.
D.
Higher Hāŗ conc. in alveoli favours the formation of oxyhaemoglobin.
Q69
Allen
PYQ
MCQ
Select the correct events that occur during inspiration.
(a) Contraction of diaphragm (b) Contraction of external inter-costal muscles (c) Pulmonary volume decreases (d) Intra pulmonary pressure increases
(a) Contraction of diaphragm (b) Contraction of external inter-costal muscles (c) Pulmonary volume decreases (d) Intra pulmonary pressure increases
A.
only (d)
B.
(a) and (b)
C.
(c) and (d)
D.
(a), (b) and (d)
Q70
Allen
PYQ
MCQ
The Total Lung Capacity (TLC) is the total volume of air accommodated in the lungs at the end of a forced inspiration. This includes:
A.
RV; IC (Inspiratory Capacity); EC (Expiratory Capacity); and ERV
B.
RV; ERV; IC and EC
C.
RV; ERV; VC (Vital Capacity) and FRC (Functional Residual Capacity)
D.
RV (Residual Volume); ERV (Expiratory Reserve Volume); TV (Tidal Volume); and IRV (Inspiratory Reserve Volume)
Q71
Allen
PYQ
Match the Columns
Match the following columns and select the correct option : Match Column-I with Column-II:
| Column-I | Column-II | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
A.
A-I, B-III, C-II, D-IV
B.
A-II, B-III, C-IV, D-I
C.
A-III, B-II, C-IV, D-I
D.
A-IV, B-I, C-III, D-II
Q72
Allen
PYQ
MCQ
The partial pressures (in mm Hg) of oxygen $( 0 _ { 2 } )$ and carbon dioxide (CO ) at alveoli (the site of diffusion) are :
A.
${ \mathsf { p O } } _ { 2 } = 1 0 4$ and ${ \mathsf { p C O } } _ { 2 } = 4 0$
B.
${ \mathsf p } { \mathsf O } _ { 2 } = 4 0$ and ${ \mathsf { p C O } } _ { 2 } = 4 5$
C.
${ \mathsf p } { \mathsf O } _ { 2 } = 9 5$ and ${ \mathsf { p C O } } _ { 2 } = 4 0$
D.
${ \mathsf p } { \mathsf O } _ { 2 } = 1 5 9$ and ${ \mathsf { p C O } } _ { 2 } = 0 . 3$
Q73
Allen
PYQ
MCQ
Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.
A.
High ${ \mathsf { p O } } _ { 2 } ,$ low ${ \mathsf { p C O } } _ { 2 } ,$ less ${ \mathsf { H } } ^ { + } ,$ , lower temperature
B.
Low ${ \mathsf { p O } } _ { 2 } ,$ high ${ \mathsf { p C O } } _ { 2 } ,$ more ${ \mathsf { H } } ^ { + } ,$ , higher temperature
C.
High ${ \mathsf { p O } } _ { 2 } ,$ , high ${ \mathsf { p C O } } _ { 2 } ,$ less ${ \mathsf { H } } ^ { + } ,$ , higher temperature
D.
Low ${ \mathsf { p O } } _ { 2 } ,$ low ${ \mathsf { p C O } } _ { 2 } ,$ more ${ \mathsf { H } } ^ { + }$ , higher temperature
Q74
Allen
PYQ
MCQ
Which of the following is not the function of conducting part of respiratory system ?
A.
Inhaled air is humidified
B.
Temperature of inhaled air is brought to body temperature
C.
Provides surface for diffusion of $\mathsf { O } _ { 2 }$ and $\mathsf { C O } _ { 2 }$
D.
It clears inhaled air from foreign particles
Q75
Allen
PYQ
MCQ
Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver ml of $\mathsf { O } _ { 2 }$ to the tissues.
A.
5ml
B.
4 ml
C.
10 ml
D.
2 ml