Which of the following is a function of the respiratory system?

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Multiple Choice

Which of the following is a function of the respiratory system?

Explanation:
Gas exchange is the primary role of the respiratory system: it brings in oxygen and removes carbon dioxide. Oxygen is essential for cellular respiration, where cells use it to produce ATP, the energy molecule that powers all body processes. By delivering oxygen to tissues and clearing CO2, the respiratory system directly supports energy production. It also helps maintain blood pH by balancing CO2 levels. The other functions described belong to other systems: regulating plasma osmolality is a kidney/endocrine function, filtering plasma proteins is a kidney function, and generating electrical impulses is a nervous system function.

Gas exchange is the primary role of the respiratory system: it brings in oxygen and removes carbon dioxide. Oxygen is essential for cellular respiration, where cells use it to produce ATP, the energy molecule that powers all body processes. By delivering oxygen to tissues and clearing CO2, the respiratory system directly supports energy production. It also helps maintain blood pH by balancing CO2 levels. The other functions described belong to other systems: regulating plasma osmolality is a kidney/endocrine function, filtering plasma proteins is a kidney function, and generating electrical impulses is a nervous system function.

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