Breathing and Exchange of Gases — NEET/JEE Questions, Notes & Weightage
Class 11 Human Physiology NEET weightage: Very High 3,471 questions
Covers the human respiratory system, the mechanism of breathing (pressure changes), gas exchange and transport (O2/CO2), and respiratory volumes/capacities. Respiratory-volume numericals (tidal volume, vital capacity) and the oxygen dissociation curve are dependable NEET sources.
Practice all 3,471 Breathing and Exchange of Gases questions →Topics inside Breathing and Exchange of Gases
Breathing Mechanism
1,054
Lung Structure
855
Transport of Gases
650
Exchange of Gases
171
Respiratory Disorders
133
Respiratory Organs
91
Regulation Of Respiration
84
Mechanism of Breathing
18
Human Respiratory System
7
Transport Of Oxygen
5
Respiratory Volumes And Capacities
5
Disorders of Respiratory
2
Lung Volumes
2
Respiration Process
1
Gas Transport
1
Frequently asked questions
Are respiratory volume numbers (tidal volume, vital capacity) really tested?
Yes — knowing the approximate values and how they combine (e.g. vital capacity = tidal + inspiratory reserve + expiratory reserve) is a recurring direct-recall question type.
What is the most important curve/graph in this chapter?
The oxygen-haemoglobin dissociation curve, and how factors like CO2 concentration and pH shift it, is the most frequently referenced graph-based concept.
How is CO2 transported in blood, and is that tested?
Yes — the three forms of CO2 transport (dissolved, as bicarbonate, bound to haemoglobin) and their approximate proportions are commonly asked.