These processes that occur in cells are described in the box.
Substances pass through the lipid bilayer of a cell from areas of high concentration to areas of low concentration
Substances move through protein channels of the lipid bilayer of a cell from areas of high concentration to areas of low concentration
Substances move through the lipid bilayer from areas of low concentration to areas of high concentration
These processes are all examples of
crossing over
the migration of genetic material
selective permeability
cellular energy use