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Gas Exchange in Humans | IGCSE and O Level Biology (0610 , 5090) Power Point
This detailed presentation on gas exchange in humans explores the intricate relationship between breathing, gas diffusion, and respiration. It defines gas exchange surfaces—such as the alveoli—and explains their critical properties: large surface area, thin membranes, and rich vascularization. The slides outline the structure and functions of the human respiratory system, including the roles of the nose, trachea, bronchi, bronchioles, and diaphragm in ventilation. It also examines how oxygen is absorbed and carbon dioxide is expelled, supported by experimental demonstrations using limewater to compare inspired and expired air.
#GasExchange, #HumanRespiration, #Alveoli, #Ventilation, #OxygenUptake, #RespiratorySystem
#GasExchange, #HumanRespiration, #Alveoli, #Ventilation, #OxygenUptake, #RespiratorySystem