Louis Pasteur postulate that all living cells come from preexisting cells. Cells are the basic unit of life. All living things are made up of cells that formed through division of the preexisting cells. The scientist cultured cells in a lab. After few days, the mass of cells had increased greatly.
<span>Facilitated Diffusion- Does not use energy. Membranes in the cell membrane pick up molecules & carry them across the membrane from high to low concentration</span>
