Class 11 NCERT • Biology (New Syllabus)
Biology Ch 14: Breathing and Exchange of Gases
Select a topic or study module below to explore respiratory organs, human respiratory system, mechanism of breathing, respiratory volumes and capacities, exchange of gases, transport of oxygen and carbon dioxide, regulation of respiration, and comprehensive textbook solutions.
Topic 01 • Respiratory Organs
Exploring Diversity of Respiratory Organs: General Body Surface, Gills, Tracheal Tubes, and Lungs
Topic 02 • Human Respiratory System
Analyzing Conducting Zone, Nostrils, Pharynx, Larynx, Trachea, Bronchi, Alveoli, and Pleural Membranes
Topic 03 • Mechanism of Breathing
Studying Inspiration, Expiration, Diaphragm Role, Intercostal Muscles, and Pressure Gradients
Topic 04 • Volumes & Capacities
Investigating Tidal Volume, Inspiratory and Expiratory Reserve Volumes, Residual Volume, and Vital Capacity
Topic 05 • Exchange of Gases
Examining Partial Pressures of Oxygen and Carbon Dioxide, Diffusion Membrane, and Solubility Factors
Topic 06 • Transport of Oxygen
Analyzing Haemoglobin, Oxyhaemoglobin Dissociation Curve, Bohr Effect, and Oxygen Saturation
Topic 07 • CO2 Transport & Regulation
Studying Bicarbonate Transport, Carbaminohaemoglobin, Haldane Effect, Respiratory Rhythm Center, and Chemosensitive Area
Module 08 • Solutions & Quiz