PrepBharat

1. The process of exchange of \[O_{2}\] from the atmosphere with \[CO_{2}\]  produced by the cell is called
a) Cellular respiration
b) Breathing
c) Ventilation
d) Perfusion

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2. The harmful gas produced by catabolic reaction in our body is
a) Oxygen
b) Carbon dioxide
c) Phosphine
d) Ozone

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3.Oxygen \[\left(O_{2}\right)\]   is utilized by the organisms to __________ break down nutrient molecules like glucose and to derive energy for performing various activities.
a) Directly
b) Indirectly
c) Incompletely
d) Any of these

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4. Mechanisms of breathing vary among diff erent groups of animals depending mainly on their ________ and _________.
a) Habitats
b) Levels of organization
c) Both (a) and (b)
d) None of these

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5. In which of the following, gaseous exchange between O₂ and CO₂ occurs through the entire body surface?
a) Sponges
b) Flatworms
c) Coelenterates
d) All of these

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6.Select the total number of organism from the following which respire through their body surface.
Sycon, Spongilla, Admsia, Taenia, Laccifer, Pila, Antedon, Gorgonia, Jelly fish
a) 4
b) 5
c) 6
d) 8

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7. In which of the following skin serves as an accessory organ of respiration?
a) Rabbit
b) Frog
c) Lizards
d) Birds

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8.Match the following:
Animals         Respiratory Organs
A. Earthworms    –   1. Lungs
B. Aquatic arthropods/Molluscs –  2. Tracheal tubes
C. Insects     –   3. Gills
D. Birds/ Reptiles/Mammals –   4. Moist cuticle
E. Fishes
a) A–2, B and C–3, D–2, E–1
b) A–4, B and E–3, C–2, D–1
c) A–4, B and D–3, D–1, E–2
d) A–3, B and D–1, C–2, E–4

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9. Amphibians, e.g., frogs respire through
a) Moist skin
b) Lungs
c) Buccopharyngeal cavity
d) All of these

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10. The adult frog does not respire through
a) Buccopharyngeal cavity
b) Gills
c) Skin
d) Lungs

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