MEDIUM
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IMPORTANT
Earn 100
Read the given statements and select the correct option.
Statement 1: Respiration is most efficient in the insects, among the invertebrates.
Statement 2: In the insects, air is carried directly to the cells by tracheoles.
72.73% studentsanswered this correctly
Important Questions on Breathing and Exchange of Gases
MEDIUM
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IMPORTANT
Read the given statements characterising certain types of animals. Select the option which correctly exemplifies each of these types.
(i) Animal having external gills
(ii) Animal having internal gills
(iii) Animal showing tracheal respiration
(iv) Animal revealing buccopharyngeal respiration
HARD
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Match Column I with II and select the correct option from the given codes.
| I (Animals) |
II (Respiratory structures) |
||
|---|---|---|---|
| Pigeon | Book gills | ||
| Scorpion | Pharyngeal wall | ||
| Planaria | Lungs | ||
| Earthworm | Gills | ||
| Spiders | Book lungs | ||
| King crab | Body surface | ||
| Prawn | Skin | ||
| Labeo |
EASY
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Which structure of man is similar to spiracle of cockroach?
MEDIUM
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Which of the following options is incorrect about the larynx (sound box)?
EASY
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Which of the following structures closes the glottis during swallowing to prevent the entry of food into wind pipe?
MEDIUM
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IMPORTANT
In man and mammals, air passes from outside into the lungs through:
MEDIUM
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IMPORTANT
Study the given figure of respiratory passage carefully and identify the parts labelled as A, B, C, D and E.
EASY
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Mammalian lungs have an enormous number of minute alveoli (air sacs). This is to allow
