Home
Class 11
BIOLOGY
Explain the following :(b) At higher alt...

Explain the following :(b) At higher altitude (i) Respiration is hurried, (ii) RBC count is increased.

Text Solution

Verified by Experts

(b) (i) At higher altitude, hypoxia i.e., low `O_(2)` tension in blood develops. This stimulates respiratory centre in brain through chemoreceptors in the body. (ii) At higher altitude, renal erythropoietin system is stimulated due to hypoxia. This in turn stimulates erythropoiesis i.e., formation of RBC in red bone marrow.
Promotional Banner

Topper's Solved these Questions

  • BREATHING AND RESPIRATION

    SANTRA PUBLICATION|Exercise Differentiation|7 Videos

  • BREATHING AND RESPIRATION

    SANTRA PUBLICATION|Exercise Long Answer Type Questions|14 Videos

  • BREATHING AND RESPIRATION

    SANTRA PUBLICATION|Exercise Very Short Answer Type Questions|40 Videos

  • BODY FLUIDS AND CIRCULATION

    SANTRA PUBLICATION|Exercise NCERT QUESTION(PART-A)|4 Videos

  • CELL - AS THE BASIC UNIT OF LIFE

    SANTRA PUBLICATION|Exercise NCERT Questions|14 Videos

Similar Questions

Explore conceptually related problems

Explain the following terms (b) Expiratory reserve volume.

(b) Explain the mechanism of (i) Quiet and (ii) Forced Expiration.

Distinguish between the following : (a) Aerobic respiration and Anaerobic respiration . (b) Glycolysis and Fermentation. (c ) Glycolysis and Citric acid Cycle .

Explain the following with examples : (i) Williamson ether synthesis (ii) Unsymmetrical ethers

I_(2)(g)hArr 2I(g) , Discuss the effect of the following changes on equilibrium of the mentioned endothermic reaction: (i) temperature is increased. (ii) pressure is increased at constant temperature.

Explain the following giving one example for each : (i) Reimer-Tiemann reaction. (ii) Friedel Craft's acetylation of anisole.

Explain briefly the following term with suitable example :- (i) protonema (ii) antheridium (iii) archegonium (iv) diplontic (v) sporophyll (vi) isogamy

Explain the following with suitable examples: (i) Ferromagnetism (ii) Paramagnetism (iii) Ferrimagbetism (iv) Anti-ferromagnetism (v) 12-16 and 13-15 group compounds

Distinguish between the following: (a) Aerobic respiration and Anaerobic respiration (b) Glycolysis and Fermentation (c) Glycolysis and Citric acid Cycle

Explain the following terms with suitable examples: (i) Schottky defect (ii) Frenkel defect (iii) Interstitials and (iv) F-centre.

SANTRA PUBLICATION-BREATHING AND RESPIRATION-Short Answer Type Questions
  1. (b) What is the air pressure within the lungs of man?

    Text Solution

    |

  2. Explain the following : (a) We can hold our breath for about 40-50 sec...

    Text Solution

    |

  3. Explain the following :(b) At higher altitude (i) Respiration is hurri...

    Text Solution

    |

  4. (a) What is dead space air? What is its value in normal adult male ?

    Text Solution

    |

  5. (b) Name the respiratory centres and mention their location in brain s...

    Text Solution

    |

  6. (a) How does CO(2) enter the lungs from blood?

    Text Solution

    |

  7. (b) How does O(2) enter the blood from lungs? (c) Name the membrane c...

    Text Solution

    |

  8. (a) What is ventilation perfusion ratio?

    Text Solution

    |

  9. (b) What is the effect of raised CO(2) concentration in arterial blood...

    Text Solution

    |

  10. (a) Why the chloride concentration of RBC in venous blood is more than...

    Text Solution

    |

  11. State the factors controlling respiration.

    Text Solution

    |

  12. From where the rhythm of respiration is generated in the human body?

    Text Solution

    |

  13. Explain why trachea does not collapse ?

    Text Solution

    |

  14. Mention the amount of CO(2) in (a) 100 ml venous blood and (b) 100 ml...

    Text Solution

    |

  15. Between O(2) and CO(2) which one is present more in arterial blood ?

    Text Solution

    |

  16. Why is the amount of CO(2) less in expired air than that in alveolar a...

    Text Solution

    |

  17. In which form is CO(2) carried in venous blood ?

    Text Solution

    |

  18. (a) What is Apnoea ? (b) What are its causes? (c) What is Cheyne-stok...

    Text Solution

    |

  19. (a) What is Mountain sickness? (b) What are its symptoms ?

    Text Solution

    |

  20. (a) What is Active and Passive Smoking? (b) What are the effects of sm...

    Text Solution

    |