Select another "method" by which molecules can be taken across cell membranes and discuss it.  Give an example and describe of the method you select.  You may choose either an active or passive mechanism.  Be sure to indicate which one it is.  It may also either be a method in which molecules are brought in or transported out of the cell. .

1. Select another "method" by which molecules can be taken
across cell membranes and discuss it. Give an example and
describe of the method you select. You may choose either an
active or passive mechanism. Be sure to indicate which one it
is. It may also either be a method in which molecules are
brought in or transported out of the cell.