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Test -1 , Class-7 , Chapter - 10 Respiration in Organisms
Prepared by Asha Shani PGT Biology KV2AFS JODHPUR
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Q.1. Giving out of air is called
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2 points
a) respiration
b) inhalation
c) exhalation
d) breathing
Q.2. Smoking is linked to
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2 points
a) fever
b) anaemia
c) cholera
d) cancer
Q.3. A breath means
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2 points
a) one inhalation and one exhalation
b) one inhalation only
c) one exhalation only
d) both a and b
Q.4. Breathing rate can be increased upto
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2 points
a) 25 times
b) 26 times
c) 27 times
d) 28 times
Q.5. Correct passage of air is
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2 points
a) nostrils- nasal cavity- lungs - alveoli
b) nostrils- diaphragm- lungs- alveoli
c) nasal cavity - nostrils- lungs- alveoli
d) nasal cavity - diaphragm- lungs- alveoli
Q.6. Particles of dust trapped in
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2 points
a) nostrils
b) nasal cavity
c) chest
d) lungs
Q.7. Exhaled air has
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2 points
a) 21% Oxygen
b) 16.4% Oxygen
c) 7.3% Oxygen
d) 15.0% Oxygen
Q.8. Tracheae present in
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2 points
a) earthworm
b) insects
c) human beings
d) fish
Q.9. Roots absorb air from
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2 points
a) soil
b) air
c) water
d) air and water
Q.10. Respiration is important because it releases
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2 points
a) CO2
b) energy
c) Oxygen
d) water vapour
Q.11. Stomata present on
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2 points
a) leaves
b) roots
c) barks
d) earthworms
Q.12. Respiration is
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2 points
a) physical process
b) chemical process
c) physico-chemical process
d) is not a process
Q.13. Yeast is
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2 points
a) unicellular
b) multicellular
c) anaerobically produce lactic acid
d) aerobically produce lactic acid
Q.14. Earthworm breathes through
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2 points
a) skin
b) lungs
c) gills
d) spiracles
Q.15. Yeast is used in wine industries because it respires
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2 points
a) aerobically producing alcohol
b) aerobically producing oxygen
c) anaerobically producing CO2
d) anaerobically producing alcohol
Q.16. During exhalation
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2 points
a) diaphragm moves down
b) diaphragm moves up
c) diaphragm moves left
d) diaphragm moves right
Q.17. Gaseous exchange in animals take place in
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2 points
a) alveoli
b) lungs
c) trachea
d) bronchi
Q.18. We get cramps during exercise due to
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2 points
a) lactic acid
b) CO2
c) citric acid
d) oxalis acid
Q.19. In insects air enters through
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2 points
a) gills
b) spiracles
c) lungs
d) skin
Q.20. Organism which breathes through both skin and lungs is
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2 points
a) human being
b) dog
c) earthworm
d) frog
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