Match the disorder given in Column I with the feature most closely related to the disorder in Column II and select the correct match from the codes given:

Column I Column II
A. Asthma P. Inflammation of bronchi and bronchioles
B. Emphysema Q. Damage to alveolar walls
C. Occupation lung disease R. Pulmonary fibrosis
Codes
A B C
1. P Q R
2. Q P R
3. Q R P
4. R Q P

Subtopic:  Respiratory Disorders: Part 1 | Respiratory Disorders: Part 2 |
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 
Assertion (A): The amount of carbon dioxide that can diffuse through the diffusion membrane per unit difference in partial pressure is much higher compared to that of oxygen.
Reason (R): The solubility of carbon dioxide is 20 – 25 times lower than that of oxygen.
In the light of the above statements choose the correct answer from the options given below:
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Respiratory System: Exchange of Gases |
 71%
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A person has the following values of respiratory volumes:
Tidal Volume 400 ml
Expiratory reserve volume 1000 ml
Inspiratory reserve volume 2500 ml
Residual volume 1000 ml

His functional residual capacity and vital capacity respectively are:
1. 2000 ml and 3900 ml 2. 2000 ml and 4900 ml
3. 1400 ml and 3900 ml 4. 1400 ml and 4900 ml
Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
 70%
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Which of the following statements is not correct?
1. Every 100 ml of oxygenated blood can deliver around 5 ml of oxygen to the tissue under normal physiological conditions.
2. Oxygen gas has most potent effect on the central chemoreceptors and plays most vital role in regulation of respiration
3. Nearly 70 percent of carbon dioxide is carried as bicarbonate in the blood.
4. Every 100 ml of deoxygenated blood delivers about 4 ml of carbon dioxide to the alveoli.
Subtopic:  Respiratory System: Regulation of Respiration |
 86%
From NCERT
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In the diffusion membrane in human lungs, a basement membrane supports:
I. Alveolar epithelium II. Vascular endothelium
 
1. Only I 2. Only II
3. Both I and II 4. Neither I nor II
Subtopic:  Respiratory System: Exchange of Gases |
 71%
From NCERT
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At the alveoli:
I: The factors are all favourable for the formation of oxyhemoglobin.
II: Carbon dioxide trapped as bicarbonate at the tissue level is released out as carbon dioxide.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Respiratory System: Exchange of Gases |
 81%
From NCERT
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Which of the following values for the given parameter is incorrect?
1. Partial pressure of oxygen in alveolar air 104 mm Hg
2. Partial pressure of carbon dioxide in deoxygenated blood 45 mm Hg
3. Transport of carbon dioxide in blood as bicarbonate 70 %
4. Transport of carbon dioxide as carbaminohemoglobin 7 %
Subtopic:  Respiratory System: Transport of Gases |
 75%
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Which of the following pulmonary capacities is not correctly matched with its constituent pulmonary volumes?
1. Inspiratory capacity Tidal volume + Inspiratory reserve volume
2. Expiratory capacity Tidal volume + Expiratory reserve volume
3. Functional residual capacity Residual volume + Inspiratory reserve volume
4. Vital capacity Tidal volume + Inspiratory reserve volume + Expiratory reserve volume
Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
 89%
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Identify the incorrectly matched pair:
1. Tidal volume in a healthy human adult About 500 ml
2. Partial pressure of oxygen in oxygenated blood 159 mm Hg
3. Resting respiratory rate in a healthy adult 12 to 16 per minute
4. Percent of carbon dioxide transported as bicarbonate in the blood 70
Subtopic:  Respiratory System: Pulmonary Ventilation | Respiratory System: Pulmonary Volumes & Capacities | Respiratory System: Exchange of Gases |
 90%
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An increase in carbon dioxide concentration in the blood would:

A: lead to an increase in the pH of CSF

B: stimulate respiration

1. Only A 2. Only B
3. Both A and B 4. Neither A nor B
Subtopic:  Respiratory System: Regulation of Respiration |
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