Answer:
C. Electron, atom, molecule, cell
Diffusion is defined as the movement of particles from higher concentration area to lower concentration areas. It continues until the concentration of substances is uniform throughout.
So, the best possible answer to this question is option A - when you inhale oxygen into your lungs,it is sent through your bloodstream to the rest of your body.
Answer:Cell membranes do not make nutrients (or energy) for the cells. This is the function of the mitochondria by the electron transport
Explanation:
Cell membranes are important because they protect the cell and control the materials that flow in and out of it. Lipids are needed in order to create the membranes in the cell.