Which of the following is entirely made of cartilage?

1. Nasal septum

2. Larynx

3. Glottis

4. Trachea

Subtopic:  Respiratory System: Upper Respiratory Tract |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Assertion   :       Most fish when out of water, die of suffocation.

Reason      :       Atmospheric air contains far less oxygen content than the dissolved oxygen in water.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Respiratory System: Upper Respiratory Tract |
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Assertion             :       Gill-lamellae in aquatic animals help in exchange of gases

Reason                :       Each gill lamella carries many blood capillaries.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Respiratory System: Upper Respiratory Tract |
 61%
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Assertion          :      In mammals, complex respiratory system has developed.

Reason             :      Mammalian skin is impermeable to gases.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Respiratory System: Upper Respiratory Tract |
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Assertion    :       Insects develop a complex system of air tubes called trachea for respiratory purpose.

Reason       :      Exchange through body surface is not possible in insects.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Respiratory System: Upper Respiratory Tract |
 51%
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Respiratory organ of scorpion is
(1)Book-lungs

(2)Book-gills

(3)Buccal cavity

(4)Lungs

Subtopic:  Respiratory System: Upper Respiratory Tract |
 71%
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Which of the following is incorrect
(1)Whale-Lungs

(2)Tadepole larva-Gills

(3)Earthworm-moist skin

(4)Spider-lungs

Subtopic:  Respiratory System: Upper Respiratory Tract |
 69%
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Which of the following is true regarding breathing rate
(1)It’s minimum in Whale/Elephant

(2)It’s is maximum in shrew

(3)more in child than an adult

(4)All of these

Subtopic:  Respiratory System: Upper Respiratory Tract |
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Which one is odd out regarding breathing rate
(1)heart beat rate

(2)B.M.R

(3)CO2 concentration

(4)Body size

Subtopic:  Respiratory System: Upper Respiratory Tract |
 60%
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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)

A:  Even the cartilaginous ring is absent in respiratory bronchiole, it does not collapse during rapid expiration.
R:  Respiratory bronchiole is lined with few surfactant releasing cells
Subtopic:  Respiratory System: Upper Respiratory Tract | Respiratory System: Exchange of Gases |
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