Practice & Test Breathing and Exchange of Gases
Class 11 Biology · Chapter 14. Practice 56 free NEET 2027 questions on Breathing and Exchange of Gases (Class 11 Biology), across 19 concepts. Asked ~2.9× per paper since 2013.
nextAIR's analysis of 4,858 tagged NEET questions (2013–2026) finds Breathing and Exchange of Gases draws about 1.5 questions per paper in the recent sittings (2023–2026), against 1.71 per paper historically — trend stable.
Part of the Human Physiology unit in NEET Biology.
How much does Breathing and Exchange of Gases matter?
Across the 13 NEET papers from 2013 to 2025, Breathing and Exchange of Gases has been examined 38 times — an average of 2.9 questions per paper. At 4 marks each, that is roughly 12 marks a year riding on this one chapter. Where it sits against every other chapter, weighted to the eight most recent papers with 2026 included, is in the NEET 2027 chapter-wise weightage.
Most repeated in Breathing and Exchange of Gases
Topics by share of the 8 most recent NEET sittings in which they appeared, from nextAIR's 4,858-question PYQ pack (2013–2026).
- Mechanism of Breathingasked 14× · 0.5 per paper recently · trend stable50%repeat
- Events of Respirationasked 3× · 0.38 per paper recently · trend up37.5%repeat
- Disorders of Respiratory Systemasked 9× · 0.25 per paper recently · trend down25%repeat
- Transport of Gasesasked 6× · 0.25 per paper recently · trend stable25%repeat
- Exchange of Gasesasked 4× · 0 per paper recently · trend down0%repeat
What gets asked: 19 concepts
Every question in the bank is tagged to one of these, so practice can target the exact idea you keep missing.
Sample questions
Start practicing Breathing and Exchange of Gases now
Practice adapts as you go — get one wrong and the next question targets the same concept instead of moving on. Or sit a timed test to see where you actually stand.
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Frequently asked
- How many questions come from Breathing and Exchange of Gases in NEET?
- Breathing and Exchange of Gases was examined 38 times across the 13 NEET papers from 2013 to 2025 — about 2.9 questions (12 marks) per paper.
- Is Breathing and Exchange of Gases important for NEET 2027?
- Yes — at roughly 2.9 questions a paper it is one of the higher-yield Biology chapters, and the NEET 2027 syllabus (NMC/UGMEB, December 2025) retains it.
- How can I practice Breathing and Exchange of Gases for NEET for free?
- nextAIR holds 56 tagged questions on Breathing and Exchange of Gases across 19 concepts. Adaptive practice and a timed chapter test both start from this page, free, with no signup.