Question

what process involved in the movement of O2 in the cell and outside of the cell

Answer 1

respiration might be the answer

Answer 2

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross thecell membrane.