The lungs deliver a regular supply of oxygen to the blood, which is in turn circulated to most all the cells of the body. At the same time oxygen is consumed during aerobic cellularrespiration within these cells. This implies that ________.

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Oxygen will passively diffuse into the cells due to the concentration gradient created by the cells constantly consuming oxygen during aerobic cellular respiration. Active transport of oxygen is not required for the majority of cells in the body. The rate of oxygen diffusion is dependent on concentration, with a steeper gradient facilitating a faster rate of diffusion.

The Lungs Deliver a Regular Supply of Oxygen to the Blood