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 is the flow of substances from a lower concentration to a higher concentration gradient which uses energy in the form of atp adenosine triphosphate whereas passive transport in contrast is the flow of substances from higher concentration to a lower concentration gradient without using energy and it continues until an