NEET UG 2017 · Zoology · Question 148
NEET 2017 Zoology, question 148
Question 148 of the NEET 2017 paper (code A) is a Zoology question from Breathing and Exchange of Gases. Its idea, Residual Volume Keeps Alveoli Open, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 1.
Updated 2026-10-08
Q148 · Zoology
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of :
- 1Residual VolumeOfficial answer
- 2Inspiratory Reserve Volume
- 3Tidal Volume
- 4Expiratory Reserve Volume
Official answer: option 1 · CBSE official answer key
Same idea
The only question on Residual Volume Keeps Alveoli Open
No other NEET paper from 2017–2026 tested this exact idea.
Residual Volume Keeps Alveoli Open: every question and how it was framed
The chapter
Breathing and Exchange of Gases in ten years of NEET
17 questions from 2017–2026, asked in 9 of 10 papers, about 1.6 a paper. Mechanism of Breathing alone had 11.