claim the interaction of motrin and robitussin can cause heart attacks in children
Active transport. Active transport is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentrationâin the direction against some gradient or other obstructing factor (often a concentration gradient).
Active transport by definition is; an energy consuming process that involves the movement of particles from a region of relatively low concentration to a region of relatively high concentration, AGAINST a concentration gradient.