Page 17 - Osmosis and Diffusion - FULL
P. 17

A      T



                                                 A      T


                   Inside Cell
                    Inside Cell




























                                                                                                energy







                                                                                       Outside Cell
                                                                                       Outside Cell


                                              Active transport
                 Some substances move across the cell membrane from an area of low
                 concentration to an area of high concentration with the use of energy. The
                 transport of materials through proteins in the cell membrane using energy is
                 called active transport.


























                             © Copyright NewPath Learning                www.newpathlearning.com                 15
   12   13   14   15   16   17   18   19   20   21   22