← Back to Zoology

Breathing And Exchange Of Gases

134 Questions MCQ (Single Correct) Start Allen Test
All Exams Allen
Q1 Allen (Conceptual Quetions) MCQ
The function of tracheal cilia is to
A.
Pass mucus out
B.
Pass mucus in
C.
Pass air out
D.
Pass air in
Q2 Allen (Conceptual Quetions) MCQ
Which of the following prevents collapsing of trachea?
A.
Muscles
B.
Diaphragm
C.
Ribs
D.
Cartilaginous rings
Q3 Allen (Conceptual Quetions) MCQ
Tracheal rings are:-
A.
Complete
B.
Incomplete
C.
Dorsally incomplete
D.
Laterally incomplete
Q4 Allen (Conceptual Quetions) MCQ
Inflammation of the lung covering causing severe chest pain is
A.
Emphysema
B.
Pleurisy
C.
Asphyxia
D.
Hypoxia
Q5 Allen (Conceptual Quetions) MCQ
Which of the following is not a part of respiratory tract?
A.
Nasal chamber
B.
Oesophagus
C.
Pharynx
D.
Trachea
Q6 Allen (Conceptual Quetions) MCQ
The epithelium of respiratory bronchioles is:-
A.
Pseudostratified columnar
B.
Simple squamous
C.
Pseudostratified and sensory
D.
Cuboidal and columnar
Q7 Allen (Conceptual Quetions) MCQ
Lungs are covered by
A.
Perichondrium
B.
Pleural sac
C.
Pericardium
D.
Periostium
Q8 Allen (Conceptual Quetions) MCQ
Which one of the following statement is correct?
A.
Chest expands because air enters into the lungs
B.
Air enters into the lungs because chest expands
C.
The muscles of the diaphragm contracts because air enters into the lungs
D.
All of the above statements are correct
Q9 Allen (Conceptual Quetions) MCQ
After deep inspiration, capacity of maximum expiration of lung is called:-
A.
Total lung capacity
B.
Functional residual capacity
C.
Vital capacity
D.
Inspiratory capacity
Q10 Allen (Conceptual Quetions) MCQ
Which statement is correct?
A.
Pulmonary ventilation is equal to alveolar ventilation.
B.
Pulmonary ventilation is less than alveolar ventilation.
C.
Alveolar ventilation is more than Pulmonary ventilation.
D.
Alveolar ventilation is less than Pulmonary ventilation.
Q11 Allen (Conceptual Quetions) MCQ
About 1500 ml of air left in lungs is called
A.
Tidal volume
B.
Inspiratory reserve volume
C.
Residual volume
D.
Vital capacity
Q12 Allen (Conceptual Quetions) MCQ
At high altitude, RBC of human blood will
A.
Increase in number
B.
Decrease in number
C.
Decrease in size
D.
Increase in size
Q13 Allen (Conceptual Quetions) MCQ
Which one has the lowest value?
A.
Tidal volume
B.
Vital capacity
C.
Inspiratory reserve volume
D.
Expiratory reserve volume
Q14 Allen (Conceptual Quetions) MCQ
Volume of air inspired or expired with each normal breath is known as -
A.
Inspiratory capacity
B.
Total lung capacity
C.
Tidal volume
D.
Residual volume
Q15 Allen (Conceptual Quetions) MCQ
Total lung capacity is :-
A.
Total volume of air accommodated in lungs at the end of forced inspiration
B.
RV + ERV + TV + IRV
C.
Vital capacity + Residual volume
D.
All of the above
Q16 Allen (Conceptual Quetions) MCQ
Which instrument helps in clinical assessment of pulmonary volumes?
A.
Sphygmomanometer
B.
Stethoscope
C.
Spirometer
D.
Electrocardiograph
Q17 Allen (Conceptual Quetions) MCQ
Volume of air remains in the lungs after normal expiration is
A.
ERV + RV
B.
IRV + RV
C.
RV + IRV + ERV
D.
TV
Q18 Allen (Conceptual Quetions) MCQ
Which of the following volume is not included in vital capacity?
A.
ERV
B.
TV
C.
IRV
D.
RV
Q19 Allen (Conceptual Quetions) MCQ
The upper region of pharynx in human is called :-
A.
Oropharynx
B.
Nasopharynx
C.
Laryngopharynx
D.
None of these
Q20 Allen (Conceptual Quetions) MCQ
Friction on the lungs surface reduces by
A.
double layered pleura
B.
single layered pleura
C.
ribs covering lungs
D.
mucous membrane surrounding the lungs.
Q21 Allen (Conceptual Quetions) MCQ
In lungs, air is separated from venous blood by:
A.
Squamous epithelium + tunica externa of blood vessel
B.
Squamous epithelium + endothelium of blood vessel
C.
Transitional epithelium + tunica media of blood vessel
D.
Columnar epithelium + 3 layered wall of blood vessel.
Q22 Allen (Conceptual Quetions) MCQ
In lung, gaseous exchange is done by :-
A.
Simple diffusion
B.
Active transport
C.
Passive transport
D.
Facilitated diffusion
Q23 Allen (Conceptual Quetions) MCQ
Which of the following statements is not true?
A.
The partial pressure of $\mathsf { O } _ { 2 }$ in deoxygenated blood is 40 mm Hg.
B.
The partial pressure of $\mathsf { O } _ { 2 }$ in oxygenated blood is 95 mm Hg.
C.
The partial pressure of $\mathsf { O } _ { 2 }$ in alveolar air is 104 mm Hg.
D.
The partial pressure of $\complement 0 _ { 2 }$ in alveolar air is 45 mm Hg.
Q24 Allen (Conceptual Quetions) MCQ
Partial pressure of oxygen in alveoli, atmospheric air and tissue will be
A.
40, 159, 45
B.
40, 0.3, 45
C.
104, 159, 40
D.
104, 0.3, 45
Q25 Allen (Conceptual Quetions) MCQ
What will be the $pO_2$ and ${ \mathsf { p C O } } _ { 2 }$ in the atmospheric air compared to those in the alveolar air?
A.
${ \mathsf { p O } } _ { 2 }$ lesser, ${ \mathsf { p C O } } _ { 2 }$ higher
B.
${ \mathsf { p O } } _ { 2 }$ higher, ${ \mathsf { p C O } } _ { 2 }$ lesser
C.
${ \mathsf { p O } } _ { 2 }$ higher, ${ \mathsf { p C O } } _ { 2 }$ higher
D.
${ \mathsf { p O } } _ { 2 }$ lesser, ${ \mathsf { p C O } } _ { 2 }$ lesser