What is respiration primarily responsible for?

Respiration is primarily responsible for supplying cells with oxygen and removing carbon dioxide. This process is essential for maintaining cellular function and overall homeostasis in the body. By taking in oxygen during inhalation, the respiratory system enables oxygen to be transported to the bloodstream, where it is then delivered to cells throughout the body. This oxygen is crucial for cellular metabolism, particularly in processes that generate energy.

Simultaneously, respiration helps to remove carbon dioxide, a waste product produced by cells during metabolic activities. The removal of carbon dioxide is vital to prevent acid-base imbalances and ensure that the blood maintains a proper pH level. Therefore, respiration plays a key role in sustaining life by facilitating gas exchange—oxygen intake and carbon dioxide removal—which are critical for survival and health.