2021 source guide · Biology

NEET 2021 Biology Breathing and Exchange of Gases Questions

Connect the official 2021 paper with current Biology practice without labelling original previews as PYQs.

Practice 150 verified questions →Check official NTA archive ↗

150 original questions · explicit provenance labels

BiologyPlate 59

NeetVellum atlas · fig. biology

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 1 · difficulty 1/5

Which description best defines Tidal volume?

A. air left after forceful expiration
B. extra air inspired after normal inspiration
C. maximum expired after maximum inspiration
D. about 500 mL of air inspired or expired in a normal breath

Example 2 · difficulty 3/5

If tidal volume is 500 mL and inspiratory reserve volume is 3000 mL, inspiratory capacity is:

A. 3500 mL
B. 3000 mL
C. 4000 mL
D. 2300 mL

Example 3 · difficulty 2/5

Which volume cannot be measured directly by simple spirometry?

A. Tidal volume
B. Residual volume
C. Expiratory reserve volume
D. Vital capacity

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

Breathing and Exchange of Gases →

Frequently asked questions

Are these official NEET 2021 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 2021 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.