NCERT Exemplar Book PDF Class 11 Biology Chapter 14 Breathing and Exchange of Gases

Download the Class 11 Biology Chapter 14 Breathing and Exchange of Gases NCERT Exemplar Book PDF, the official 2026-27 NCERT Exemplar problems for this chapter. The Exemplar gives higher-order MCQs, assertion-reason and short and long answer questions that go beyond the textbook, and it is a favourite source for NEET, CBSE boards and CUET.

• Official NCERT Exemplar 2026-27 problems for this chapter.
• Includes MCQs, assertion-reason, and short and long answer questions.
• Ideal for extra practice after the NCERT textbook and back exercises.

This Class 11 Biology Chapter 14 Breathing and Exchange of Gases NCERT Exemplar Book PDF is the official 2026-27 NCERT Exemplar, checked against the latest edition.

What the Breathing and Exchange of Gases Exemplar Covers

The Exemplar tests the same chapter as the textbook but at a higher level of difficulty. Its questions probe the mechanism of breathing, the respiratory volumes and capacities, the exchange and transport of gases, and the regulation of respiration. Because this chapter mixes clean numbers with process diagrams, the Exemplar checks whether students can read a spirogram, apply partial-pressure gradients, and trace the path of oxygen and carbon dioxide from the alveoli to the tissues.

• Human respiratory system and the mechanism of breathing, including inspiration, expiration and the role of the diaphragm and intercostal muscles.
• Respiratory volumes and capacities such as tidal volume, vital capacity and residual volume, and how a spirometer measures them.
• Exchange and transport of O₂ and CO₂, the oxygen dissociation curve, and the regulation of respiration along with disorders like asthma and emphysema.

Why Practise the Exemplar for This Chapter

The Exemplar bridges the gap between the NCERT textbook and the level of a competitive exam. For breathing and exchange of gases, its questions are close to the style asked in NEET and CUET, where a single partial-pressure value or transport percentage can decide a mark. Because this chapter carries direct numerical facts and a well-known dissociation curve, the Exemplar is where students meet the graph-based questions and assertion-reason sets that a plain reading of the textbook rarely throws up.

• Higher-order questions on the oxygen dissociation curve and the Bohr effect that the textbook exercises do not cover.
• Assertion-reason sets that sharpen your grip on partial-pressure gradients and the chloride shift.
• MCQs on respiratory volumes and gas transport percentages at exam level.

How to Use the Exemplar for Breathing and Exchange of Gases

Attempt the Exemplar only after you have finished the NCERT textbook chapter and its back exercises. Treat it as your second, harder pass over the chapter. Because much of this chapter rests on values and a graph, students gain the most by drawing the oxygen dissociation curve and writing out each transport percentage rather than only marking the option, so the numbers stay fixed in memory for the exam.

• Solve the MCQs first to test recall of volumes and partial pressures, then move to assertion-reason.
• Attempt each short and long answer fully before checking the Exemplar Solutions.
• Sketch the respiratory system and the oxygen dissociation curve, and label every part.
• Mark the questions you got wrong and redo them after two days.

Other Class 11 Biology Breathing and Exchange of Gases Resources

Use the Exemplar with the textbook PDF, the solved answers, the formula sheet and the revision notes for the same chapter. Working across all resources gives students the definitions, the practice and the higher-order questions they need for both the CBSE board exam and NEET.

Student Feedback on the Breathing and Exchange of Gases Exemplar

More than 10,000 Class 11 students used these Collegedunia NCERT resources during the 2026 boards and NEET preparation. Their feedback shaped how we present this chapter, and the message on Chapter 14 was consistent: the Exemplar is what turns a page of respiratory numbers into exam-ready recall.

• Students rated the graph-based questions on the oxygen dissociation curve as the most useful part for NEET.
• Many said the Exemplar MCQs on respiratory volumes matched the board and NEET questions they later saw.
• Students preparing for CUET found the short-answer terms a fast way to revise the whole chapter.

NCERT Exemplar Book for Class 11 Biology: All Chapters

Download the Exemplar for every chapter from one place. Each link opens the official NCERT Exemplar Book PDF for that chapter.

FAQs on Class 11 Biology Chapter 14 NCERT Exemplar PDF