Describe and explain how the movement of oxygen?

Answer 1

The movement of oxygen occurs primarily through diffusion, where oxygen molecules move from areas of higher concentration (such as the lungs) to areas of lower concentration (like the bloodstream). In the lungs, oxygen enters the alveoli and diffuses across the alveolar membrane into the capillaries, binding to hemoglobin in red blood cells for transport. This oxygen-rich blood is then circulated throughout the body, where oxygen is released into tissues that have lower oxygen concentrations, supporting cellular respiration. This process is essential for maintaining aerobic metabolism in living organisms.