The process by which a gas dissolves in a liquid so that oxygen can be transported to the cells of our body is called:

The process by which a gas dissolves in a liquid so that oxygen can be transported to the cells of our body is called diffusion. Here are the steps of this process:

1. Oxygen enters the body through the respiratory system: When we breathe in, oxygen from the air enters our lungs.

2. Oxygen diffuses into the blood: Inside the lungs, oxygen diffuses across the thin walls of the alveoli (tiny air sacs) and into the bloodstream. This happens because the concentration of oxygen is higher in the alveoli than in the blood, so oxygen naturally moves from an area of high concentration to an area of low concentration.

3. Oxygen binds to hemoglobin: Once in the blood, oxygen binds to a molecule called hemoglobin in red blood cells. This allows the oxygen to be transported throughout the body.

4. Oxygen is delivered to cells: The oxygen-rich blood travels to all parts of the body, delivering oxygen to cells. Again, this is due to diffusion - the concentration of oxygen is higher in the blood than in the cells, so oxygen moves from the blood into the cells.

5. Carbon dioxide is removed: As a byproduct of using oxygen, cells produce carbon dioxide. This waste product diffuses out of the cells, into the blood, then into the lungs, where it is exhaled. This is also a part of the diffusion process.