Gaseous Exchange Learning App | Class 10 Biology MCQs e-Book PDF
Class 10 Biology MCQs (Grade 10) From Textbook

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

Gaseous Exchange MCQs with Answers PDF Download – Test 21

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Study Gaseous exchange Multiple Choice Questions (MCQs) with Answers PDF to maximize biology career online. Download the Gaseous Exchange MCQs PDF e-Book, Ch. 3-21 to study Class 10 Biology Course. Learn Gaseous Exchange Quiz Questions and Answers for biology academic enrichment programs. Free Gaseous Exchange Learning App Download: Class 10 Biology MCQs App to gaseous exchange in humans, exchange of gases in humans, thoracic diseases, respiratory disorders test prep for biology online collaboration tools.

Download the "Gaseous Exchange Learning" App: In the air passageway, the nasal cavity opens into a muscular passage which is called; MCQ with answers: pharynx, nostrils, trachea, and glottis. Solve Gaseous Exchange in Humans MCQ Questions, download Google e-Book (Free Chapter) to maximize biology career online.

Gaseous Exchange MCQs – Practice Test 21 PDF Download

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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