Home
Class 11
BIOLOGY
(a) If we try to breath in and out throu...

(a) If we try to breath in and out through a long tube, will it be easy ? Give reasons.

Text Solution

Verified by Experts

(a) No, it will not be easy because in this case air is drawn into the respiratory tract slowly through long tube of limited surface area and not at normal rate from the open atmosphere of larger area. So, less air will be available tor gaseous exchange in the lungs.
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

Why it is not easier to breath through a long tube ?

Half - life of a first order reaction is 15 min . Calculate rate constant of the reaction and the time required to complete 80% of the reaction. If the initial concentration of the reactant is doubled , how long will it take to reach 50% completion ? Give reason.

Two wires of equal lengths are bent in the form of two loops. One of the loops is square shape whereas the other loop is circular. These are suspended in a uniform magnetic field and the same current is passed through them. Which loop will experience greater torque? Give reasons.

We can't rejoin the broken chalk easily. Give reason. (AS_1)

Due to hectic and busy schedule, Mr. Singh started taking Junk food in the lunch break and slowly became habitual of eating food irregularly to excel in his field. One day, during a meeting he felt severe chest pain and fell down. Mr. Khanna, a close friend of Mr. Singh took him to doctor immediately. The doctor diagnosed that Mr. Singh was suffering from acidity and prescribed some medicines. Mr. Khanna advised him to eat homemade food and change his lifestyle by doing yoga, meditation and some physical exercise. Mr. Singh followed his friend's advice and after few days he started feeling better. Would it be advisable to take antacids for a long period of time? Give reason.

A bar magnet falls from height 'h' through a metal ring as shown in the figure. Will its acceleration be equal to 'g'? Give reason for your answer.

Assertion (A). In Spirogyra, some cells in one of the two filaments become empty after conjugation. Reason (R ). The aplanogametes from the cells of the filaments pass through conjugation tubes into the cells of the other filaments.

State whether the following statements are true or false? Also give reasons for your answers. a) Only one line can pass through a given point. b) All right angles are equal. c) Circles with same radii are equal. d) A line segment can be extended on its both sides endlessly to get a straight line. e) From the figure, AB gt AC .

Due to hectic and busy schedule, Mr. Singh started taking Junk food in the lunch break and slowly became habitual of eating food irregularly to excel in his field. One day, during a meeting he felt severe chest pain and fell down. Mr. Khanna, a close friend of Mr. Singh took him to doctor immediately. The doctor diagnosed that Mr. Singh was suffering from acidity and prescribed some medicines. Mr. Khanna advised him to eat homemade food and change his lifestyle by doing yoga, meditation and some physical exercise. Mr. Singh followed his friend's advice and after few days he started feeling better. What are the values (atleast two) displayed by Mr. Khanna?What are antacids? Give one Example. Would it be advisable to take antacids for a long period of time? Give reason.

Asserion : Long distance flows of photoassimilates in plants occurs through seive tubes Reason : Mature seive tubes have parietal cytoplasm and prforated seive plates

SANTRA PUBLICATION-BREATHING AND RESPIRATION-Short Answer Type Questions
  1. Explain the following terms (a) Inspiratory reserve volume (b) Expirat...

    Text Solution

    |

  2. Explain the following terms (b) Expiratory reserve volume.

    Text Solution

    |

  3. (a) If we try to breath in and out through a long tube, will it be eas...

    Text Solution

    |

  4. (b) What is the percentage CO(2) in (i) Inspired air and (ii) Expired...

    Text Solution

    |

  5. (c) State the functions of CO(2) in our body.

    Text Solution

    |

  6. (a) What is chloride shift ?

    Text Solution

    |

  7. (b) Why more H(2)CO(3) is formed in RBC than in plasma?

    Text Solution

    |

  8. (c) How much O(2) is carried by one g of Haemoglobin ?

    Text Solution

    |

  9. (d) How many molecules of O(2) are combined with one molecule of Haem...

    Text Solution

    |

  10. (a) What is surfactant?

    Text Solution

    |

  11. (b) What is the air pressure within the lungs of man?

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  18. (a) What is ventilation perfusion ratio?

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |