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Q. No.Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?
1. High \(\mathrm{pO}_2\) and Lesser \(\mathrm{H}^{+}\) concentration
2. Low \(\mathrm{pCO}_2\) and High \(\mathrm{H}^{+}\) concentration
3. Low \(\mathrm{pCO}_2\) and High temperature
4. High \(\mathrm{pO}_2\) and High \(\mathrm{pCO}_2\)
Subtopic: Respiratory System: Transport of Gases Part 1 |
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Level 1: 80%+
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Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| A. | Emphysema | I. | Proliferation of fibrous tissues |
| B. | Asbestosis | II. | Alveolar walls are damaged and respiratory surface is decreased |
| C. | Asthma | III. | Serious lung damage |
| D. | Fibrosis | IV. | Difficulty in breathing due to inflammation of bronchi and bronchioles |
| 1. | A-I, B-III, C-IV, D-II | 2. | A-II, B-III, C-IV, D-I |
| 3. | A-IV, B-III, C-II, D-I | 4. | A-I, B-II, C-IV, D-III |
Subtopic: Respiratory Disorders: Part 1 | Respiratory Disorders: Part 2 | Respiratory Disorders - III |
88%
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In humans, the process of respiration involves the following steps:
Choose the correct sequence of steps from the options given below:
| A. | Diffusion of gases across alveolar membrane |
| B. | Diffusion of gases between blood and tissues |
| C. | Transport of gases by blood |
| D. | Utilisation of \(O_2\) by the cells for catabolic reactions |
| E. | Breathing or pulmonary ventilation |
| 1. | A →E→B→C→D | 2. | C →E→A→B→D |
| 3. | B →D→C→E→A | 4. | E →A→C→B→D |
Subtopic: Respiratory Organs |
90%
Level 1: 80%+
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Match List-I with List-II:
Choose the correct answer from the options given below:
1. A-III, B-II, C-IV, D-I
2. A-II, B-I, C-IV, D-III
3. A-I, B-III, C-II, D-IV
4. A-II, B-IV, C-I, D-III
| List-I | List-II | ||
| A. | Expiratory capacity | I. | Expiratory reserve volume + Tidal volume + Inspiratory reserve volume |
| B. | Functional residual capacity | II. | Tidal volume + Expiratory reserve volume |
| C. | Vital capacity | III. | Tidal volume + Inspiratory reserve volume |
| D. | Inspiratory capacity | IV. | Expiratory reserve volume + Residual volume |
1. A-III, B-II, C-IV, D-I
2. A-II, B-I, C-IV, D-III
3. A-I, B-III, C-II, D-IV
4. A-II, B-IV, C-I, D-III
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
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| Assertion (A): | Smoking increases the carbon monoxide (CO) content in the blood which has a greater affinity to hemoglobin than oxygen. |
| Reason (R): | CO forms a stable bond with haemoglobin and does not allow the binding of oxygen. It reduces the concentration of heme bounded oxygen and causes oxygen deficiency in the body. |
| 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. | (A) is false but (R) is true. |
Subtopic: Respiratory System: Transport of Gases |
75%
Level 2: 60%+
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Match the organisms given in Column-I with the respiratory surfaces given in Column-II:
1. i-a, ii-c, iii-b, iv-d
2. i-b, ii-d, iii-c, iv-a
3. i-c, ii-a, iii-d, iv-b
4. i-d, ii-b, iii-a, iv-c
| Column-I | Column-II | ||
| i. | Planaria | a. | Book gills |
| ii. | Limulus | b. | External gills |
| iii. | Turtles | c. | Body surface |
| iv. | Amphibian tadpoles | d. | Cloaca |
2. i-b, ii-d, iii-c, iv-a
3. i-c, ii-a, iii-d, iv-b
4. i-d, ii-b, iii-a, iv-c
Subtopic: Respiratory Organs |
76%
Level 2: 60%+
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Match the following columns and select the correct option:
1. (i)-(b), (ii)-(c), (iii)-(d), (iv)-(a)
2. (i)-(c), (ii)-(b), (iii)-(d), (iv)-(a)
3. (i)-(d), (ii)-(a), (iii)-(c), (iv)-(b)
4. (i)-(a), (ii)-(c), (iii)-(b), (iv)-(d)
| Column I | Column II | ||
| i. | Pneumotaxic Centre | a. | Alveoli |
| ii. | \(O_2\) Dissociation curve | b. | Pons region of brain |
| iii. | Carbonic Anhydrase | c. | Haemoglobin |
| iv. | Primary site of exchange of gases | d. | R.B.C. |
2. (i)-(c), (ii)-(b), (iii)-(d), (iv)-(a)
3. (i)-(d), (ii)-(a), (iii)-(c), (iv)-(b)
4. (i)-(a), (ii)-(c), (iii)-(b), (iv)-(d)
Subtopic: Respiratory System: Regulation of Respiration |
94%
Level 1: 80%+
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Match the items given in Column I with those given in Column II and select the correct option given below:
1. i-a, ii-d, iii-c, iv-b
2. i-c, ii-a, iii-d, iv-b
3. i-c, ii-b, iii-a, iv-d
4. i-d, ii-c, iii-b, iv-a
| Column I | Column II | ||
| i. | Tidal Volume | a. | 2500 - 3000 mL |
| ii. | Inspiratory Reserve Volume | b. | 1100 - 1200 mL |
| iii. | Expiratory Reserve Volume | c. | 500 - 550 mL |
| iv. | Residual Volume | d. | 1000 - 1100 mL |
2. i-c, ii-a, iii-d, iv-b
3. i-c, ii-b, iii-a, iv-d
4. i-d, ii-c, iii-b, iv-a
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
90%
Level 1: 80%+
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Match the different forms given in Column-I with respect to percentage of \(CO_2\) transported in
column II and select the correct option
1. (a)-(ii), (b)-(iii), (c)-(i)
2. (a)-(i), (b)-(ii), (c)-(iii)
3. (a)-(iii), (b)-(i), (c)-(ii)
4. (a)-(i), (b)-(iii), (c)-(ii)
column II and select the correct option
| Column-I | Column-II | ||
| (a) | Dissolved in plasma | (i) | 23 |
| (b) | Bicarbonate ions | (ii) | 07 |
| (c) | Carbaminohaemoglobin | (iii) | 70 |
2. (a)-(i), (b)-(ii), (c)-(iii)
3. (a)-(iii), (b)-(i), (c)-(ii)
4. (a)-(i), (b)-(iii), (c)-(ii)
Subtopic: Respiratory System: Transport of Gases |
82%
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Select the incorrect match with respect to transport of respiratory gases
| 1. | \(pO_2-\)30 mm Hg | 50% saturation of Hb |
| 2. | One molecule of Hb | \(5 Fe^{++}\) |
| 3. | Erythrocyte | Formation of carbonic acid |
| 4. | Dissociation of oxyhaemoglobin | Acidic pH |
Subtopic: Respiratory System: Transport of Gases |
69%
Level 2: 60%+
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