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Q. No.A chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased will be:
1.
Emphysema
2.
Asthma
3.
Tuberculosis
4.
Common cold
Subtopic: Â Respiratory Disorders - III |
 92%
From NCERT
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The lungs are covered by the pleural membranes which mainly help in:
1. maintaining pressure
2. increasing thoracic pressure
3. removing foreign particles
4. reducing friction
1. maintaining pressure
2. increasing thoracic pressure
3. removing foreign particles
4. reducing friction
Subtopic: Â Respiratory System: Trachea & Basic Anatomy of Lung |Â Respiratory Organs |
 88%
From NCERT
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Consider the two statements:
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
| Statement I: | The alveoli have ciliated cells in them to help expel dust particles that make it this far down into the respiratory tract. |
| Statement II: | Gas exchange between the lungs and the blood, and between the blood and tissue fluid, is an active transport process. |
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
Subtopic: Â Respiratory System: Trachea & Basic Anatomy of Lung |
 55%
From NCERT
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Consider the two statements:
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
| Statement I: | Intrapulmonary pressure must be greater than atmospheric pressure for air to enter the lungs. |
| Statement II: | Intrapulmonary pressure must be lower than atmospheric pressure for air to be exhaled out of the lungs. |
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
Subtopic: Â Respiratory System: Transport of Gases Part 1 |Â Respiratory System: Transport of Gases Part 2 |Â Respiratory System: Transport of Gases |
 89%
From NCERT
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Consider the two statements:
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
| Statement I: | The pO2 of the blood normally has no direct effect on respiration. |
| Statement II: | The pO2 of the oxygenated blood is higher than the pO2 of the alveolar air. |
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
Subtopic: Â Respiratory System: Transport of Gases Part 1 |Â Respiratory System: Transport of Gases Part 2 |Â Respiratory System: Transport of Gases |
 52%
From NCERT
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Carbon dioxide is not carried in the human blood as:
1. dissolved gas
2. bicarbonate ion
3. carbaminohemoglobin
4. carboxyhemoglobin
1. dissolved gas
2. bicarbonate ion
3. carbaminohemoglobin
4. carboxyhemoglobin
Subtopic: Â Respiratory System: Transport of Gases |
 80%
From NCERT
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The oxyhemoglobin dissociation curve is shifted to the right by:
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I: | increased temperature |
| II: | increased pH |
| III: | increased carbon dioxide |
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Â Respiratory System: Transport of Gases |
 68%
From NCERT
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Which respiratory disorder is characterised by inflammation of bronchi and bronchioles and wheezing?
1. Tuberculosis
2. Emphysema
3. Pulmonary hypertension
4. Asthma
1. Tuberculosis
2. Emphysema
3. Pulmonary hypertension
4. Asthma
Subtopic: Â Respiratory Disorders: Part 1 |Â Respiratory Disorders: Part 2 |
 90%
From NCERT
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Regarding the chemical regulation of respiration in humans:
1. Only I and II are correct
2. Only II and III are incorrect
3. I, II and III are incorrect
4. Only I and III are correct
| I: | A chemosensitive area is situated adjacent to the rhythm centre which is highly sensitive to CO2 and hydrogen ions. |
| II: | Receptors associated with aortic arch and carotid artery can recognise changes in O2 concentration and send necessary signals to the rhythm centre for remedial actions. |
| III: | The role of oxygen in the regulation of respiratory rhythm is most significant. |
2. Only II and III are incorrect
3. I, II and III are incorrect
4. Only I and III are correct
Subtopic: Â Respiratory System: Exchange of Gases |Â Respiratory System: Regulation of Respiration |
 59%
From NCERT
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In tissues:
1. a and b are correct
2. a and d are correct
3. b and c are correct
4. c and d are correct
| a. | pCO2 is high and pO2 is low |
| b. | dissociation of CO2 from carbamino-haemoglobin takes place |
| c. | pCO2 is low and pO2 is high |
| d. | more binding of carbon dioxide to haemoglobin occurs |
1. a and b are correct
2. a and d are correct
3. b and c are correct
4. c and d are correct
Subtopic: Â Respiratory System: Exchange of Gases |
 84%
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