Gaseous Exchange Multiple Choice Questions and Answers 21 PDF Download

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MCQs on Gaseous Exchange Worksheets 21 Quiz PDF Download

MCQ: In air passageway, nasal cavity opens into a muscular passage which is called

  1. nostrils
  2. pharynx
  3. trachea
  4. glottis


MCQ: Nostril has mucous which is responsible for

  1. Filtering of air
  2. Cleaning of air
  3. Moisten the air
  4. Clear the air


MCQ: Which of following is a narrow opening at floor of pharynx which leads into larynx?

  1. Epiglottis
  2. Glottis
  3. Oral cavity
  4. Oesophagus


MCQ: Powerful poison, widely used as an insecticide

  1. Nicotine
  2. Glucagon
  3. Nicotinamide
  4. Histamide


MCQ: Respiratory disorder asthma leads to

  1. more mucous production
  2. lungs infection
  3. destruction of alveoli walls
  4. inflammation of bronchi