Home
Class 11
BIOLOGY
Alveoli become enlarged and damaged with...

Alveoli become enlarged and damaged with reduced surface area in heavy smokers. The condition is called

A

Silicosis

B

Emphysema

C

Asthma

D

Bronchitis

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • BREATHING AND EXCHANGE OF GASES

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|14 Videos

  • BREATHING AND EXCHANGE OF GASES

    MODERN PUBLICATION|Exercise COMPETITION FILE (ASSERTION TYPE QUESITONS ):|11 Videos

  • BODY FLUIDS AND CIRCULATION

    MODERN PUBLICATION|Exercise Chapter Practice Test|15 Videos

  • CELL : THE UNIT OF LIFE

    MODERN PUBLICATION|Exercise Chapter Practice Test (Section-E)|1 Videos

Similar Questions

Explore conceptually related problems

In heavy smoker the alveoli of the lungs are enlarged and damaged which reduces the surface area of the exchange of respiratory gases this condition is called

Continued inbreeding reduces fertility of animal, This condition is called as

The diagram below shows three plants with identical leaf surface area : Assuming all other conditions were identical for all three plants , which of the plants would likely to photosynthesize slowest and fastest.

Total surface area of human alveoli in lungs is

Gauss's law and Coulomb's law , although expressed in different forms , are equivalent ways of describing the relation between charge and electric field in static conditions . Gauss's law is epsilon_(0) phi = q_(encl) ,when q(encl) is the net charge inside an imaginary closed surface called Gaussian surface. The two equations hold only when the net charge is in vaccum or air . A Gaussian surface encloses two of the four positively charged particles. The particles that contribute to the electric field at a point P on the surface are

Breakdown of alveoli of lungs resulting in the reducing surface area for gas exchange is known as

The product of N.E.I. and given surface area of the closed surface is called as

The surface of nerve fibres bear narrow areas called

A plant species when grown in shade tends to produce thinner leaves with more surface area, and when grown under abundant sunlight starts producing thicker leaves with reduced surface area. This phenomenonaaaaaz is an example of

The cathode of a diode valve is replaced by another cathode of double the surface area. Keeping the voltage and temperature conditions the same, will the plate current decrease, increase or remain the same?

MODERN PUBLICATION-BREATHING AND EXCHANGE OF GASES-COMPETITION FILE (ADDITIONAL MULTIPLE CHOICE QUESTIONS:):
  1. One molecule of haemoglobin carries molecules of oxgyen :

    Text Solution

    |

  2. SARS is caused by the variant of

    Text Solution

    |

  3. Alveoli become enlarged and damaged with reduced surface area in heavy...

    Text Solution

    |

  4. During inspiration , the diaphragm:

    Text Solution

    |

  5. Ravi, who lived at sea level, had around 5 million RBC per cubic milli...

    Text Solution

    |

  6. what is true about haemoglobin

    Text Solution

    |

  7. Respiration result in :

    Text Solution

    |

  8. After deep inspiration, capacity of maximum expiration of lung is call...

    Text Solution

    |

  9. Respiratory quotient is defined as :

    Text Solution

    |

  10. Respiratory quotient is defined as :

    Text Solution

    |

  11. After taking a long deep breath we do not respire for some seconds due...

    Text Solution

    |

  12. Lungs are covered by

    Text Solution

    |

  13. Maximum amount of oxygen is lost from the blood in the

    Text Solution

    |

  14. A person whith normal tidal volume has a respirtory rate of 14 b...

    Text Solution

    |

  15. How much per cent of CO(2) is expired ?

    Text Solution

    |

  16. Pulmonary ventilation movements are due to :

    Text Solution

    |

  17. If R. Q. is less than 1.0 in a respiratory metabolism it would mean th...

    Text Solution

    |

  18. Partial pressure of oxygen in the lungs is .

    Text Solution

    |

  19. In Lungs there if definity exchange of ions between RBC and Plasma. Re...

    Text Solution

    |

  20. Ascent of high mountains may cause altitude sickness in men. Prime cau...

    Text Solution

    |