NEET Biology: Breathing and Exchange of Gases — MCQ Test 8

Q6. Which structure prevents the collapse of alveoli by reducing surface tension?

Q7. What is the approximate number of breaths per minute in a healthy adult?

Q8. Which factor promotes the dissociation of oxyhemoglobin at the tissues?

Q9. Which structure prevents the collapse of the trachea during breathing?

Q10. Which structure in the human respiratory system acts as a protective barrier against foreign particles?

NEET Biology — Breathing and Exchange of Gases

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Which muscle plays a primary role in increasing the thoracic cavity volume during inspiration?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Biology preparation, focusing specifically on the chapter Breathing and Exchange of Gases. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Increasing, Thoracic, Inspiration, Following, Statements, and Expiration.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which muscle plays a primary role in increasing the thoracic cavity volume during inspiration?

  • A. Diaphragm
  • B. Abdominal muscles
  • C. Intercostal muscles
  • D. Sternocleidomastoid

Q2. Which of the following statements about the nasal cavity is correct?

  • A. It helps in warming, humidifying, and filtering incoming air.
  • B. It prevents the passage of air into the trachea.
  • C. It is directly connected to the alveoli.
  • D. It plays no role in respiration.

Q3. Which of the following occurs during expiration?

  • A. Diaphragm contracts
  • B. Thoracic volume increases
  • C. Pulmonary pressure decreases
  • D. Intercostal muscles relax

Q4. Which structure separates the thoracic cavity from the abdominal cavity?

  • A. Pleura
  • B. Diaphragm
  • C. Intercostal muscles
  • D. Trachea

Q5. Which respiratory volume remains in the lungs even after a forceful expiration?

  • A. Tidal Volume
  • B. Residual Volume
  • C. Vital Capacity
  • D. Expiratory Reserve Volume

+ 5 more questions in the actual test

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