Example 1 · difficulty 2/5
Compared with inspired atmospheric air, alveolar air has:
- A. more O₂ and less CO₂
- B. equal O₂ and CO₂
- C. less O₂ and more CO₂
- D. no nitrogen
2022 source guide · Biology
NEET 2022 Biology Breathing and Exchange of Gases Questions
Connect the official 2022 paper with current Biology practice without labelling original previews as PYQs.
150 original questions · explicit provenance labels
BiologyPlate 77
NeetVellum atlas · fig. biology
77
What to master
ventilation, gas exchange, transport and respiratory regulation.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 2/5
A thinner respiratory membrane causes diffusion rate to:
- A. decrease
- B. become zero
- C. depend only on haemoglobin
- D. increase
Example 3 · difficulty 2/5
In alveoli, PO₂ is higher than in deoxygenated blood, so O₂ diffuses:
- A. from alveoli into blood
- B. from blood into alveoli
- C. from alveoli into pleural fluid only
- D. nowhere
The evidence-first practice loop
- 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
- 2. Attempt closed-bookExpose the concept or execution gap before rereading.
- 3. Repair and returnClassify the miss and re-practice after a delay.
Canonical chapter practice
Frequently asked questions
Are these official NEET 2022 Biology Breathing and Exchange of Gases PYQs?
No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.
How should I use the NEET 2022 paper?
Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.