Which of the following is not a symptom of asthma?

1. Difficulty in breathing

2. Breathing noisily/wheezing

3. Alveolar walls are damaged

4. Inflammation of bronchi and bronchioles

Subtopic:  Respiratory Disorders: Part 1 |
 84%
From NCERT
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Carbonic anhydrase plays an important role in the transport of carbon dioxide in

1.  Leucocytes

2.  Thrombocytes

3.  Erythrocytes

4.  Platelets

Subtopic:  Respiratory System: Transport of Gases Part 2 | Respiratory System: Transport of Gases |
 91%
From NCERT
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In which of the following disorders there is difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles?

1. Emphysema

2. Asthma

3. Pleurisy

4. Tuberculosis

Subtopic:  Respiratory Disorders: Part 1 | Respiratory Disorders: Part 2 |
 92%
From NCERT
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Which of the following is a chronic respiratory disorder in which alveolar walls are damaged due to which respiratory surface is decreased? One of the major causes of this disease is cigarette smoking

1. Asthma

2. Emphysema

3. Silicosis

4. Pneumonia

Subtopic:  Respiratory Disorders: Part 1 | Respiratory Disorders: Part 2 |
 95%
From NCERT
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Identify the wrong statement with reference to transport of oxygen:

1. Partial pressure of CO2 can interfere with O2 binding with haemoglobin.
2. Higher H+ concentration in alveoli favours the formation of oxyhaemoglobin.
3. Low pCO2 in alveoli favours the formation of oxyhaemoglobin.
4.  Binding of oxygen with haemoglobin is mainly related to partial pressure of O2.

Subtopic:  Respiratory System: Transport of Gases Part 1 | Respiratory System: Transport of Gases |
 81%
From NCERT
NEET - 2020
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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

1. (c) and (d)

2. (a), (b) and (d)

3. only (d)

4. (a) and (b) 

Subtopic:  Respiratory System: Pulmonary Ventilation |
 67%
From NCERT
NEET - 2020
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The Total Lung Capacity (TLC) is the total volume of air accommodated in the lungs at the end of forced inspiration.

This includes:

1. RV; IC (Inspiratory Capacity); EC (Expiratory Capacity); and ERV
2. RV; ERV; IC and EC
3. RV; ERV; VC (Vital Capacity) and FRC (Functional Residual Capacity)
4. RV (Residual Volume); ERV (Expiratory Reserve Volume); TV (Tidal Volume); and IRV (Inspiratory Reserve Volume)

Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
 86%
From NCERT
NEET - 2020
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Match the following columns and select the correct option:
 

Column I Column II
(a) Pneumotaxic Centre  (i) Alveoli
(b) O 2 Dissociation curve (ii) Pons region of the brain
(c) Carbonic  Anhydrase  (iii) Haemoglobin
(d) Primary site of exchange of gases (iv) R.B.C. 

 
Options: (a) (b) (c) (d)
1. (i) (iii) (ii) (iv)
2. (ii) (iii) (iv) (i)
3. (iii) (ii) (iv) (i)
4. (iv) (i) (iii) (ii)

Subtopic:  Respiratory System: Exchange of Gases | Respiratory System: Regulation of Respiration |
 93%
From NCERT
NEET - 2020
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The partial pressures (in mm Hg) of oxygen (O2) and carbon dioxide (CO2) at alveoli (the site of diffusion) are :

1. pO2=95 and pCO2 = 40

2. pO2 = 159 and pCO2 =0.3

3. pO2 = 104 and pCO2=40

4. pO2 = 40 and pCO2=45

Subtopic:  Respiratory System: Exchange of Gases |
 76%
From NCERT
NEET - 2021
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Select the favorable conditions required for the formation of oxyhemoglobin at the alveoli. 

1. High pO2, high pCO2, less H+, higher temperature

2. Low pO2, low pCO2, more H+, higher temperature

3. High pO2, low pCO2, less H+, lower temperature

4. Low pO2 high pCO2 more H+, higher temperature

Subtopic:  Respiratory System: Transport of Gases |
 89%
From NCERT
NEET - 2021
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