Q. No.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?
1.
2700 mL
2.
1500 mL
3.
1700 mL
4.
2200 mL
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to:
| 1. | reduction in the secretion of surfactants by pneumocytes |
| 2. | benign growth on mucous lining of nasal cavity |
| 3. | inflammation of bronchi and bronchioles |
| 4. | proliferation of fibrous tissues and damage of the alveolar walls |
The majority of carbon dioxide produced by our body cells is transported to the lungs:
| 1. | dissolved in the blood |
| 2. | as bicarbonates |
| 3. | as carbonates |
| 4. | attached to haemoglobin |
| 1. | Inspiratory reserve volume plus tidal volume |
| 2. | Total lung capacity minus expiratory reserve volume |
| 3. | Inspiratory reserve volume plus expiratory reserve volume |
| 4. | Total lung capacity minus residual volume |
The figure given below shows a small part of the human lung where exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function?
| 1. | A – Alveolar cavity – main site of exchange of respiratory gases |
| 2. | D – Capillary wall – exchange of O2 and CO2 takes place here |
| 3. | B – Red blood cell – transport of CO2 mainly. |
| 4. | C – Arterial capillary – passes oxygen to tissues |
Two friends are eating together at a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of:
| 1. | diaphragm | 2. | neck |
| 3. | tongue | 4. | epiglottis |
Which one of the following is the correct statement for respiration in humans?
| 1. | Cigarette smoking may lead to inflammation of the bronchi |
| 2. | Neural signals from the pneumotaxic centre in the pons region of the brain can increase the duration of inspiration |
| 3. | Workers in grinding and stone-breaking industries may suffer from lung fibrosis |
| 4. | About 90% of carbon dioxide (CO2) is carried by haemoglobin as carbaminohaemoglobin |
The figure shows a diagrammatic view of the human respiratory system with labels A, B, C, and D. Select the option that gives the correct identification, main function, and/or characteristics:
| 1. | B-pleural membrane- surrounds ribs on both sides to provide cushion against rubbing. |
| 2. | C-alveoli-thin walled vascular bag-like structures for the exchange of gases. |
| 3. | D-lower end of the lungs-diaphragm pulls it down during inspiration. |
| 4. | A trachea-long tube supported by complete cartilaginous rings for conducting inspired air. |
Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs:
| 1. | as bicarbonate ions |
| 2. | in the form of dissolved gas molecules |
| 3. | by binding to R.B.C |
| 4. | as carbamino-haemoglobin |
Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls.
| 1. | Pleurisky | 2. | Emphysema |
| 3. | Pneumonia | 4. | Asthma |
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