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Q. No.Most of the aquatic arthropods respire through:
| 1. diffusion over entire body surface | 2. gills |
| 3. tracheae and tracheoles | 4. skin |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
77%
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Branchial respiration is seen in all the following except:
| 1. Aquatic arthropods | 2. Fishes |
| 3. Amphibians like frog | 4. Aquatic mollusks |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
57%
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During summer sleep and winter sleep in frogs, the gaseous exchange takes place:
1. Across the alveoli in the lungs.
2. Through the moist buccal mucosa.
3. In the gills.
4. Through the skin.
Subtopic: Respiratory Organs |
91%
From NCERT
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Name the cavities in which the lungs are located:
1. pleural and abdominal cavities.
2. pericardial and thoracic cavities.
3. pleural and thoracic cavities.
4. pleural and pericardial cavities.
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
84%
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During deglutition, the food is prevented from entering into the larynx by the cartilaginous:
| 1. epiglottis | 2. glottis |
| 3. aryepiglottic fold | 4. laryngeal prominence |
Subtopic: Respiratory System: Upper Respiratory Tract |
93%
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The sound box in humans is:
1. the larynx and is entirely made up of cartilage
2. the larynx and is entirely made up of bone
3. the muscular pharynx
4. the glottis where mucosal folds are present
1. the larynx and is entirely made up of cartilage
2. the larynx and is entirely made up of bone
3. the muscular pharynx
4. the glottis where mucosal folds are present
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
94%
From NCERT
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Consider the given two statements:
| I: | Lower invertebrates like sponges, coelenterates and flatworms exchange oxygen with carbon dioxide by simple diffusion over their entire body surface. |
| II: | Fishes are the only vertebrates that do not use lungs as respiratory organs. |
| 1. | Only I is correct | 2. | Only II is correct |
| 3. | Both I and II are correct | 4. | Both I and II are incorrect |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
55%
From NCERT
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Identify the incorrect statement regarding respiratory organs:
| 1. | Lower invertebrates like sponges, coelenterates, flatworms, etc., exchange O2 with CO2 by simple diffusion over their entire body surface. |
| 2. | Earthworms use their moist cuticle as respiratory surface. |
| 3. | Insects have a network of tubes (tracheal tubes) to transport atmospheric air within the body. |
| 4. | All vertebrates use lungs as respiratory organs. |
Subtopic: Respiratory Organs |
90%
From NCERT
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Trachea is a straight tube extending up to the mid-thoracic cavity, which divides into a right and left primary bronchi at the level corresponding to:
1. Seventh cervical vertebra
2. Second thoracic vertebra
3. Fifth thoracic vertebra
4. Seventh thoracic vertebra
1. Seventh cervical vertebra
2. Second thoracic vertebra
3. Fifth thoracic vertebra
4. Seventh thoracic vertebra
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
93%
From NCERT
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The trachea:
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: | divides into two principal bronchi at the level of 7th thoracic vertebra. |
| II: | is invested by incomplete cartilaginous rings in its wall. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
81%
From NCERT
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