Medicneet Logo
Class 11 · Breathing and Exchange of Gases

O₂ and CO₂ Exchange in Tissues — NEET Biology

📚 Practice Concept
📖 NCERT Source

Diffusion of O₂ and CO₂ between blood and tissues.

NCERT Biology · Class 11 · Chapter 14 · Paragraph 12
Practice This Concept
QuestionPractice Question

Assertion (A): Gas exchange occurs only between alveoli and blood. Reason (R): The alveolar surface provides the primary site for oxygen and carbon dioxide diffusion.

Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.

88/90
of the NEET 2026 Biology paper matched from the MedicNEET question bank

MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.

88 of 90 NEET 2026 Biology questions traced to MedicNEET10,000+ Biology questionsHindi + English
Download MedicNEET — FreeTry Web Version →
Free to start · Hindi + English · 10,000+ questions · NEET 2026 pattern
Related Concepts from Breathing and Exchange of Gases
NEET 2026Breathing or pulmonary ventilation by which atmospheric air is drawn in and CO₂ …View concept →NEET 2020The overall increase in the thoracic volume causes a similar increase in pulmona…View concept →NEET 2026Tidal Volume (TV): Volume of air inspired or expired during a normal respiration…View concept →
📘Practice all 22 NEET PYQs from Breathing and Exchange of Gases→🔍See full Breathing and Exchange of Gases PYQ Analysis→