Match List I with List II:
List I List II
A. Residual volume  I. Air volume remains in the lungs after a normal expiration
B. Vital capacity II. Maximum air volume a person can breathe in after a forced expiration 
C. Tidal volume III. Air volume remains in the lungs after a forcible expiration
D. Functional residual capacity Air volume inspired during a normal respiration

Choose the correct answer from the options given below: 
1. A-III , B-II, C-IV, D-I 
2. A-II, B-III, C-IV, D-I
3. A-II, B-III, C-I, D-IV
4. A-III, B-I, C-IV, D-II   
Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
 82%
From NCERT
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Match List I with List II:
List I List II
A. Expiratory capacity I. TV + IRV
B. Vital capacity II. ERV + TV + IRV
C. Inspiratory capacity III. TV + ERV
D. Functional residual capacity IV. ERV + RV
Choose the correct answer from the options given below:
1.  A - (IV); B - (II); C - (I); D - (III)
2.  A - (II); B - (I); C - (IV); D - (III)
3.  A - (III); B - (II); C - (I); D - (IV)
4.  A - (I); B - (II); C - (III); D - (IV)
Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
 85%
From NCERT
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How many of the stated functions are performed by conducting part of human respiratory system?
(a) Clearing the incoming air by trapping dust particles present in it.
(b) Diffusion of O2 and CO2 between blood and atmospheric air.
(c) Conducting air from external nostrils upto bronchioles.
(d) Bringing the temperature of air upto the body temperature.
(e) Making the incoming air humid by providing moisture produced by epithelium of nasal cavities.
(f) Transporting the atmospheric air to the alveoli.
1. Six
2. Four
3. Five
4. Three
Subtopic:  Respiratory System: Upper Respiratory Tract | Respiratory System: Trachea & Basic Anatomy of Lung |
From NCERT
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Assertion (A): Gaseous exchange in mammals occurs in alveoli, air sacs clustered at the tips of the finest bronchioles.
Reason (R): The type of epithelial layer of serous membranes such as the pleura is the same as that found in alveoli.
In light of the above statements, choose the correct option:
1. (A) and (R) are true, (R) is the correct explanation of (A)
2. (A) and (R) are true, (R) is not the correct explanation of (A)
3. (A) is true, (R) is false
4. (A) is false, (R) is true
Subtopic:  Respiratory System: Exchange of Gases |
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How many statements are correct with respect to the mechanism of breathing?

(a) Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure.
(b) Lungs do not collapse between breaths and some air always remains in the lungs because there is a negative intrapleural pressure pulling at the lungs walls.
(c) Expiration is initiated due to the contraction of diaphragm.
(d) One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all.
(e) The strength of inspiration and expiration can be increased with the help of additional muscles in the abdomen.
Select the correct option from the following:
1. Two
2. Three
3. Four
4. Five
Subtopic:  Respiratory System: Pulmonary Ventilation |
From NCERT
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Match column-I with column-II and select the correct option.
Column I Column II
a. Residual volume  (i) 0.5 L
b. Expiratory reserve volume (ii) 2.5-3 L
c. Inspiratory reserve volume (iii) 1-1.1 L
d. Tidal volume  (iv) 1.1-1.2 L

1. a(i), b(ii), c(iii), d(iv)
2. a(iv), b(iii), c(ii), d(i)
3. a(iii), b(iv), c(ii), d(i)
4. a(iv), b(iii), c(i), d(ii)
Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
 81%
From NCERT
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Read the given statements and select the correct option.
Statement-A: One can breathe out air through eustachian tubes by closing both the nose and the mouth.
Statement-B: External inter-costal and abdominal muscles are muscles involved in inspiration under normal breathing.
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is correct
4. Only statement B is correct
Subtopic:  Respiratory System: Pulmonary Ventilation |
From NCERT
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Assertion (A): Thoracic chamber is anatomically an air-tight chamber and any change in its volume has no effect whatsoever on the pulmonary cavity.
Reason (R): Lungs are situated in the thoracic cavity and this arrangement is essential for breathing.
With respect to the above mentioned statements, choose the correct answer from the following options.
1. (A) and (R) are true and (R) is the correct explanation of A
2. (A) and (R) are true but (R) is not the correct explanation of A
3. (A) is true but (R) is false
4. (A) is false but (R) is true
Subtopic:  Respiratory System: Trachea & Basic Anatomy of Lung |
 77%
From NCERT
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How many of the given factors affect the exchange of gases between blood and tissues?
a. Thickness of diffusion membrane
b. Solubility of gases
c. Pressure gradient
d. Concentration gradient
Mark the correct option from the following:
1. Two
2. One
3. Four
4. Zero
Subtopic:  Respiratory System: Exchange of Gases |
 79%
From NCERT
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The total volume of air accommodated in the lungs at the end of a forced inspiration in a healthy adult individual can be represented as:
(a) IC + FRC 
(b) ERV + RV + TV+ IRV 
(c) ERV + TV+ IRV 
(d) RV + IRV + EC 
Select the correct option. 
1. only a 
2. (a), (b) and (d) 
3. (a), (b), (c) and (d) 
4. Only (b) and (d) 
Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
 60%
From NCERT
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