If the concentration of oxygen in a body tissue cell is 5% and the concentration of oxygen in the blood surrounding cell is 10%, the direction that the oxygen will diffuse would be into the body tissue cell.
Gas, and other molecules of matter always diffuse spontaneously from the region of higher concentration to the region of lower concentration.
In this case, the body tissue cell has lower concentration of oxygen while the blood surrounding cell has a higher concentration of the gas. Thus, all other things being equal, oxygen would diffuse from the surrounding cell to the body tissue cell.
More on diffusion can be found here: https://brainly.com/question/14392880
