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Why do we usually feel hungry after a he...

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

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After a physical activity, we take deep breathes and inhale more oxygen. As a result, more oxygen is supplied to our cells and the process of breakdown of food speeds up. Due to this, more energy is released and we tend to feel hungry.
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LAKHMIR SINGH & MANJIT KAUR-RESPIRATION IN ORGANISMS -EXERCISE
  1. Explain why, whenever a person needs extra energy, he breathes faster.

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

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

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

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

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

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

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

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

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  10. Why do all the organisms respire ?

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

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

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

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  14. State the harmful effects of smoking.

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

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  16. Name the breathing organs in fish

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  17. Name the breathing organs in earthworm

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  18. Name the breathing organs in frog

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  19. Name the breathing organs in insects

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  20. Describe the process of breathing and respiration the following anima...

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