The assignment content discusses the importance of osmosis and diffusion processes in maintaining the life of cells, particularly in plants. Both processes help balance the concentration of substances across cell membranes, allowing for the supply of essential nutrients to cells and removal of waste products. Osmosis is the movement of water molecules from an area of high concentration to one of low concentration, while diffusion involves the movement of solids, liquids, and gases from an area of high concentration to one of lower concentration. The main function of both processes is to maintain the survival of cells by supplying nutrients and removing waste products. Additionally, osmosis helps regulate temperature and environment within cells.