Respiratory Organs LEVEL 3 MCQs Breathing and Exchange of Gases Biology - XI NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

The conducting part of the human respiratory system:

I:	transports the atmospheric air to the alveoli
II:	clears inhaled air from foreign particles
III:	humidifies and also brings the air to body temperature
IV:	is the site of actual diffusion of O₂ and CO₂ between blood and atmospheric air

1. Only I and II are correct
2. Only II and IV are correct
3. Only I, II and III are correct
4. Only II, III and IV are correct

Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung | Respiratory System: Regulation of Respiration | Respiratory Organs |

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