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Q. No.Which of the following values for the given parameter is incorrect?
1.
Partial pressure of oxygen in alveolar air
104 mm Hg
2.
Partial pressure of carbon dioxide in deoxygenated blood
45 mm Hg
3.
Transport of carbon dioxide in blood as bicarbonate
70 %
4.
Transport of carbon dioxide as carbaminohemoglobin
7 %
Subtopic: Respiratory System: Transport of Gases |
77%
Level 2: 60%+
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For each unit difference in the partial pressure across the diffusion membrane, the amount of carbon dioxide that diffuses:
| 1. | is higher than the amount of oxygen as the solubility of carbon dioxide is 20-25 times lower than that of oxygen |
| 2. | is lower than the amount of oxygen as the solubility of carbon dioxide is 20-25 times lower than that of oxygen |
| 3. | is higher than the amount of oxygen as the solubility of carbon dioxide is 20-25 times higher than that of oxygen |
| 4. | is lower than the amount of oxygen as the solubility of carbon dioxide is 20-25 times higher than that of oxygen |
Subtopic: Respiratory System: Exchange of Gases |
80%
Level 1: 80%+
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Which of the following pulmonary capacities is not correctly matched with its constituent pulmonary volumes?
| 1. | Inspiratory capacity | Tidal volume + Inspiratory reserve volume |
| 2. | Expiratory capacity | Tidal volume + Expiratory reserve volume |
| 3. | Functional residual capacity | Residual volume + Inspiratory reserve volume |
| 4. | Vital capacity | Tidal volume + Inspiratory reserve volume + Expiratory reserve volume |
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
90%
Level 1: 80%+
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In breathing:
| 1. | Contraction of internal costal muscles leads to inhalation |
| 2. | Contraction of diaphragm increases the volume of thoracic chamber in dorso-ventral axis |
| 3. | Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure |
| 4. | The residual volume of the lungs averages 2500 ml to 3000 ml |
Subtopic: Respiratory System: Pulmonary Ventilation |
82%
Level 1: 80%+
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Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver _____________ml of O2 to the tissues.
1. 10 ml
2. 2 ml
3. 5 ml
4. 4 ml
Subtopic: Respiratory System: Transport of Gases |
87%
Level 1: 80%+
NEET - 2022
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Which of the following is not the function of conducting part of respiratory system?
| 1. | Provides surface for diffusion of O2 and CO2 |
| 2. | It clears inhaled air from foreign particles |
| 3. | Inhaled air is humidified |
| 4. | Temperature of inhaled air is brought to body temperature |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
85%
Level 1: 80%+
NEET - 2022
Hints
Which of the following disorders represents decrease in respiratory surface due to damaged alveolar walls?
1. Hypocapnia
2. Bronchitis
3. Asthma
4. Emphysema
Subtopic: Respiratory Disorders: Part 1 |
90%
Level 1: 80%+
NEET - 2022
Hints
In the regulation of respiration, a chemosensitive area adjacent to the rhythm centre in the medulla region of the brain, is highly sensitive to:
1. \(HCO^-_3\)
2. \(CO_2\)
3. \(O_2\)
4. \(N_2\)
Subtopic: Respiratory System: Regulation of Respiration |
80%
Level 1: 80%+
NEET - 2022
Hints
When you take a deep breath, your stomach moves out because
1. swallowing air increases the volume of the thoracic cavity
2. your stomach shouldn’t move out when you take a deep breath because you want the volume of your chest cavity to increase, not your abdominal cavity
3. contracting your abdominal muscles pushes your stomach out, generating negative pressure in your lungs.
4. when your diaphragm contracts, it moves down, pressing your abdominal cavity out.
1. swallowing air increases the volume of the thoracic cavity
2. your stomach shouldn’t move out when you take a deep breath because you want the volume of your chest cavity to increase, not your abdominal cavity
3. contracting your abdominal muscles pushes your stomach out, generating negative pressure in your lungs.
4. when your diaphragm contracts, it moves down, pressing your abdominal cavity out.
Subtopic: Respiratory System: Exchange of Gases |
Level 3: 35%-60%
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A: In mammals –ve pressure breathing takes place.
R: Inspiration can occurs if the transpulmonary pressure is less than the atmospheric pressurea
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
R: Inspiration can occurs if the transpulmonary pressure is less than the atmospheric pressurea
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
Subtopic: Respiratory System: Exchange of Gases |
76%
Level 2: 60%+
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