Breathing and Exchange of Gases — NEET/JEE Questions, Notes & Weightage
Class 11 Human Physiology NEET weightage: Very High 1,271 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 1,271 Breathing and Exchange of Gases questions →Topics inside Breathing and Exchange of Gases
Exchange of Gases
628
Mechanism of Breathing
616
Regulation Of Respiration
354
Human Respiratory System
338
Respiratory Volumes And Capacities
324
transport-of-gases
309
Transport Of Oxygen
282
Respiratory Organs
220
Transport Of Carbon Dioxide
215
disorders-of-respiratory-system
135
14-1-respiratory-organs-and-human-respiratory-system
16
14-2-mechanism-of-breathing
11
14-5-regulation-of-respiration
7
14-4-transport-of-gases
7
14-3-exchange-of-gases
6
breathing-and-exchange-of-gases-overview
6
Gas Transport
1
Lung Volumes
1
14-6-disorders-of-respiratory-system
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.