Gaseous Exchange Multiple Choice Questions and Answers 14 PDF Download

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MCQs on Gaseous Exchange Worksheets 14 Quiz PDF Download

MCQ: Kind of bronchitis that causes no permanent damage to lungs and lasts for two weeks is called

  1. acute bronchitis
  2. chronic bronchitis
  3. coastal bronchitis
  4. intercoastal bronchitis

A

MCQ: Lenticels are pores present in layer of

  1. Leaf
  2. Epidermis
  3. Cuticle
  4. Bark

D

MCQ: During inhalation, ribs muscles contract and

  1. Move down
  2. Shrink
  3. Expand
  4. Raise

D

MCQ: Pores in layer of bark are called

  1. Stomata
  2. Cuticle
  3. Lenticels
  4. Guttation

C

MCQ: Amount of nitrogen present in expired and inspired air is

  1. 69%
  2. 72%
  3. 75%
  4. 79%

D