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Class 10 Biology Competitive Exam: Practice Test 21 (Chapter 3)

Gaseous Exchange Multiple Choice Questions (MCQs) PDF Download - 21

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The Gaseous exchange Multiple Choice Questions (MCQs) with Answers PDF (Gaseous Exchange MCQs PDF e-Book) download Ch. 3-21 to study Class 10 Biology Course. Learn Gaseous Exchange Quiz Questions and Answers to study online certification courses. The Class 10 Biology MCQs App Download: Free Gaseous Exchange App for gaseous exchange in humans, exchange of gases in humans, thoracic diseases, respiratory disorders test prep for school certificate.

The MCQ: In the air passageway, the nasal cavity opens into a muscular passage which is called; "Gaseous Exchange" App Download [Free] with answers: pharynx, nostrils, trachea, and glottis to study online certification courses. Solve Gaseous Exchange in Humans MCQ Questions, download Google eBook (Free Sample) for online degrees.

Gaseous Exchange MCQs with Answers PDF Download: Quiz 21

MCQ: 101

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

  1. nostrils
  2. pharynx
  3. trachea
  4. glottis
MCQ: 102

Nostril has mucous which is responsible for

  1. filtering of air
  2. cleaning of air
  3. moisten the air
  4. clear the air
MCQ: 103

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

  1. epiglottis
  2. glottis
  3. oral cavity
  4. Oesophagus
MCQ: 104

The powerful poison, widely used as an insecticide

  1. nicotine
  2. glucagon
  3. nicotinamide
  4. histamine
MCQ: 105

The respiratory disorder asthma leads to

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

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