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Explain why, whenever a person needs ext...

Explain why, whenever a person needs extra energy, he breathes faster.

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LAKHMIR SINGH & MANJIT KAUR-RESPIRATION IN ORGANISMS -EXERCISE
  1. List the differences between aerobic respiration and anerobic respirat...

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  2. Why does running make a man breathe faster ?

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  3. Explain why, whenever a person needs extra energy, he breathes faster.

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  4. Why does an athlete breathe faster and deeper than usual after finishi...

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  5. Why do we usually feel hungry after a heavy physical exercise ?

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  6. What would happen if a potted plant is over-watered for a long time ? ...

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  7. Which will turn lime water milky more appreciably : inhled air or exha...

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  8. Explain why ,exhaled air contains more carbon dioxide than inhaled air

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  9. Explain why ,exhaled air containsless oxygen than inhaled air

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  10. Explain why,exhaled air contains more water vapour than inhaled air

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  11. Explain why, when we exhale air from our mouth on to a mirror, a patch...

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  12. Why do all the organisms respire ?

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  13. What is yeast ? What type of respiration is carried out by yeast ?

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  14. why do mountaineers carry oxygen gas cylinders with them ?

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  15. Why do we often sneeze when we inhale a lot of dust-laden air?

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  16. State the harmful effects of smoking.

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  17. Define 'breathing rate'. How does the breathing rate in children diffe...

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  18. Name the breathing organs in fish

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  19. Name the breathing organs in earthworm

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  20. Name the breathing organs in frog

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