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Q. No.Consider the given two statements:
Statement I:
The outer pleural membrane is in close contact with the thoracic lining.
Statement II:
The inner pleural membrane is in contact with the lung surface.
Statement III:
The part starting with the external nostrils up to the terminal bronchioles constitutes the respiratory or exchange part of the respiratory system.
Statement IV:
The alveoli and their ducts form the conducting part of the respiratory system.
1.
Statement I is correct; Statement II is correct; Statement III is correct; Statement IV is correct
2.
Statement I is incorrect; Statement II is incorrect; Statement III is incorrect; Statement IV is incorrect
3.
Statement I is correct; Statement II is correct; Statement III is incorrect; Statement IV is incorrect
4.
Statement I is incorrect; Statement II is incorrect; Statement III is correct; Statement IV is correct
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung | Respiratory Organs |
81%
From NCERT
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Consider the given two statements:
| Assertion (A): | Inspiration can occur if there is a negative pressure in the lungs with respect to atmospheric pressure. |
| Reason (R): | The thoracic chamber is an airtight chamber. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | (A) is True, (R) is False |
| 4. | (A) is False, (R) is True |
Subtopic: Mechanism of Breathing |
80%
From NCERT
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Consider the given two statements:
| Assertion (A): | An increase in pulmonary volume will cause inspiration. |
| Reason (R): | An increase in pulmonary volume increases the intra-pulmonary pressure to more than the atmospheric pressure. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Respiratory System: Pulmonary Ventilation |
84%
From NCERT
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Consider the given two statements:
| Assertion (A): | Relaxation of the diaphragm and the inter-costal muscles brings about inspiration. |
| Reason (R): | Relaxation of the diaphragm and the inter-costal muscles leads to an increase in intra-pulmonary pressure to slightly above the atmospheric pressure. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: Mechanism of Breathing |
83%
From NCERT
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On an average, a healthy human breathes:
1. 4-8 times/minute.
2. 8-12 times/minute.
3. 12-16 times/minute.
4.16-20 times/minute.
1. 4-8 times/minute.
2. 8-12 times/minute.
3. 12-16 times/minute.
4.16-20 times/minute.
Subtopic: Respiratory System: Pulmonary Ventilation |
96%
From NCERT
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Regarding pulmonary volumes and capacities, which of the following will not hold true?
1. TLC – VC = RV
2. TLC – RV = FRC
3. IC = VC - ERV
4. ERV + RV = FRC
1. TLC – VC = RV
2. TLC – RV = FRC
3. IC = VC - ERV
4. ERV + RV = FRC
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
66%
From NCERT
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Consider the two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Expiratory Capacity is the total volume of air a person can expire after a normal inspiration. |
| Statement II: | Functional Residual Capacity is the volume of air that will remain in the lungs after a forceful maximal expiration. |
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
61%
From NCERT
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Vital capacity can be defined as:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | The maximum volume of air a person can breathe in after a normal expiration. |
| II: | The maximum volume of air a person can breathe out after a normal inspiration. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
59%
From NCERT
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The partial pressure of CO2 in deoxygenated blood and tissues is about:
1. 40 mm Hg
2. 45 mm Hg
3. 100 mm Hg
4. 104 mm Hg
1. 40 mm Hg
2. 45 mm Hg
3. 100 mm Hg
4. 104 mm Hg
Subtopic: Respiratory System: Exchange of Gases |
88%
From NCERT
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The correct sequence of the magnitude of the partial pressure of oxygen [beginning at the maximum] will be:
| 1. | Atmospheric air → Oxygenated blood → Alveoli → Tissues |
| 2. | Alveoli → Atmospheric air → Oxygenated blood → Tissues |
| 3. | Atmospheric air → Alveoli → Oxygenated blood → Tissues |
| 4. | Alveoli → Atmospheric air → Oxygenated blood → Deoxygenated blood |
Subtopic: Respiratory System: Exchange of Gases |
89%
From NCERT
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