what????transport???

Dear Journal...
This week we have study about the active and passive transport. The active transport, energy is required in order for the materials to move across the cell membrain and the example of this is taking place in the bodyi s when the nerve cell constantly allows potassium inside it.The passive transport it means moving biochemicals and other atomic or molecular substances across membranes. Unlike active transport, this process does not involve chemical energy. Passive transport is dependent on the permeability of the cell membrane, which, in turn, is dependent on the organization and characteristics of the membrane lipids and proteins. The four main kinds of passive transport are diffusion, facilitated diffusion, filtration and osmosis.