NEET Biology: Breathing and Exchange of Gases — MCQ Test 2

Q6. Which of the following statements about respiratory control is incorrect?

Q7. Which of the following factors decreases the affinity of hemoglobin for oxygen?

Q8. What is the function of the pneumotaxic center in respiration?

Q9. Which of the following statements regarding oxygen transport is correct?

Q10. Which of the following best describes the role of carbonic anhydrase in respiration?

NEET Biology — Breathing and Exchange of Gases

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Which of the following correctly describes the role of the diaphragm 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 Following, Correctly, Describes, Diaphragm, Inspiration, 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 of the following correctly describes the role of the diaphragm during inspiration?

  • A. Contracts and moves downward
  • B. Relaxes and moves upward
  • C. Expands and thickens
  • D. Remains stationary

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

  • A. Tidal volume is the volume of air exchanged during forced breathing.
  • B. Vital capacity includes tidal volume, inspiratory reserve volume, and residual volume.
  • C. Expiratory reserve volume is the additional air exhaled after a normal expiration.
  • D. Inspiratory capacity equals expiratory reserve volume plus tidal volume.

Q3. Which of the following statements regarding carbon dioxide transport is incorrect?

  • A. Carbon dioxide is mainly transported as bicarbonate ions.
  • B. A small amount of CO₂ binds to hemoglobin to form carbamino-hemoglobin.
  • C. Carbonic anhydrase is present in red blood cells and facilitates CO₂ transport.
  • D. The majority of carbon dioxide is transported dissolved in plasma.

Q4. Which of the following is NOT a factor affecting oxygen dissociation from hemoglobin?

  • A. pCO₂
  • B. pH
  • C. Enzyme concentration
  • D. Temperature

Q5. Which part of the brain controls the voluntary regulation of respiration?

  • A. Cerebrum
  • B. Medulla oblongata
  • C. Pons
  • D. Hypothalamus

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