NEET Biology: Breathing and Exchange of Gases — MCQ Test 3

Q6. Which of the following is NOT a function of the pleural fluid?

Q7. Which of the following lung volumes includes the volume of air remaining in the lungs after a forced expiration?

Q8. Which condition is caused by bacterial or viral infection leading to inflammation of alveoli?

Q9. What is the primary stimulus for breathing in a healthy individual?

Q10. Which of the following statements regarding alveolar gas exchange is correct?

NEET BiologyBreathing and Exchange of Gases

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Which component of blood is mainly responsible for buffering pH changes due to carbon dioxide transport?

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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 Component, Responsible, Buffering, Transport, Following, and Statements.

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 component of blood is mainly responsible for buffering pH changes due to carbon dioxide transport?

  • A. Hemoglobin
  • B. Bicarbonate ions
  • C. Plasma proteins
  • D. Red blood cell enzymes

Q2. Which of the following statements about respiratory disorders is correct?

  • A. Emphysema is caused by bacterial infection of the lungs.
  • B. Asthma involves inflammation of the bronchi and bronchioles.
  • C. Pneumonia results from excessive dust accumulation in the lungs.
  • D. Silicosis is a genetic disorder affecting alveoli.

Q3. Which of the following statements regarding pulmonary ventilation is incorrect?

  • A. Inspiration occurs when intrapulmonary pressure decreases below atmospheric pressure.
  • B. Expiration occurs when intrapulmonary pressure is lower than atmospheric pressure.
  • C. Diaphragm contraction increases thoracic cavity volume.
  • D. External intercostal muscle contraction lifts the ribs during inspiration.

Q4. Which factor increases the affinity of hemoglobin for oxygen?

  • A. High pCO₂
  • B. High temperature
  • C. Low H⁺ concentration
  • D. Both 2 and 3

Q5. Which of the following statements about the human respiratory system is correct?

  • A. The larynx prevents the entry of food into the trachea during swallowing.
  • B. The bronchioles are lined with cartilaginous rings for support.
  • C. Gas exchange occurs in the bronchioles.
  • D. The right lung has two lobes, while the left lung has three lobes.

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